Professional Details

Work Experience: 21 years

Membership: Indian Pharmaceutical Association

Orcid ID: 0000-0001-9500-006X

Contact Details

Phone number: 044-4741 1000 Etxn.

Email Official: pazhanigp@chettinadhealthcity.com

Email Personal: pazhanigp@gmail.com

Summary of Academic and Research Profile

  • A self-started and result-oriented professional with 20+ years of experience in Teaching, Administrative Activities Management, Research, Lab Management, Project Management, Papers Presentation, Publications, and so on. 
  • Extensive experience in designing and executing practical’s for B. Pharm., M. Pharm., M.S. Pharm., & Pharm. D Students along with the competency in preparing grade cards and scrupulous in maintaining the Lab
  • Expertise in teaching & guiding students in the project work and instrumental in various project activities like Global Enteric Multi-centric Study funded by Gates Foundation, US
  • Successfully played a vital role as a Dean-In-Charge at National Institute of Pharmaceutical Education & Research, Kolkata, India
  • Demonstrated capability in diligently examining and managing activities of interpretation of data and publishing data
  • Track record of designing and executing experimental protocols.

Research Grants Received

  • Sensitization of Colicin Resistant E. coli by Cell-Penetrating Peptides (Role: Principal Investigator; funding agency: DST; Project File No. ECR/520/000520; Current status: completed 2020)
  • Molecular Epidemiology of Clostridium difficile: A re-emerging pathogen of Public Health Importance (Role: Co-Investigator; funding agency: DBT Twinning Project; Completed in May 2015)

Advanced Research Training

  • Trained on PulseNet cholera database of PFGE fingerprints setup and use in the WHO CHOLDInet& International Network at Enteric Diseases Laboratory branch, Center for Diseases Control & Prevention, Atlanta, USA (Jan – Feb 2010)

Research area of Interest

  • Isolation & Identification of new antimicrobials or antibiotic-resistant modulators from  natural sources such as plants, microbes, marine components, etc.,
  • Chemical fingerprinting of bioactive extracts by spectral methods.
  • Development of new synthetic methodologies for bioactive molecules obtained from a natural source

List of publication

  • 1.P. Kanagavalli, S. Radhakrishnan, G. Pandey, V. Ravichandiran, G. PerumalPazhani, M. Veerapandian, G. Hegde, Electrochemical Tracing of Butein Using Carbon Nanoparticles Interfaced Electrode Processed from Biowaste. Electroanalysis. 2020 :32: 1220.
  • 2.Guin S, Saravanan M , Anjay, Chowdhury G, Pazhani GP, Ramamurthy T, Das SC Pathogenic Vibrio parahaemolyticusindiarrhoeal patients, fish and aquatic environments and their potential for inter-source transmission. Heliyon 5 (2019): e01743
  • 3.Darshani P, Gumpu MB, Thumpati P, Rayappan JBB, Ravichandiran V, Pazhani GP*, Veerapandian M. Chemically synthesized butein and butin: Optical, structure and electrochemical redox functionality at electrode interface. J PhotochemPhotobiol B. 2018: 182:122-129. (*Corresponding author)
  • 4.Das SC, Ramamurthy T, Ghosh S, Pazhani GP, Sen T, Singh R. Molecular characterization of locus of enterocyte effacement pathogenicity island in shigatoxicEscherichia coli isolated from human & cattle in West Bengal, India. Indian J Med Res. 2017:146:S30-S37.
  • 5.Pazhani GP*, Ravichandiran V, Veerapandian M, Ramamurthy T. Bioinformatics on Unproven Secretion Systems of Vibrio Parahaemolyticus. Sci J Biomed Eng Biomed Sci. 2017;1: 020-025 (*Corresponding Author)
  • 6.De R, Ramamurthy T, Sarkar BL, Mukhopadhyay AK, Pazhani GP, Sarkar S, Dutta S, Nair GB. Retrospective genomic analysis of Vibrio cholerae O1 El Tor strains from different places in India reveals the presence of ctxB-7 allele found in Haitian isolates. Epidemiol Infect. 2017:145:2212-2220.
  • 7.Calcuttawala F, Hariharan C, Pazhani GP, Saha DR, Ramamurthy T. Characterization of E-type colicinogenic plasmids from Shigellasonnei. FEMS MicrobiolLett. 2017:1;364.
  • 8.Imamura D, Morita M, Sekizuka T, Mizuno T, Takemura T, Yamashiro T, Chowdhury G, Pazhani GP, Mukhopadhyay AK, Ramamurthy T, Miyoshi SI, Kuroda M, Shinoda S, Ohnishi M. Comparative genome analysis of VSP-II and SNPs reveals heterogenic variation in contemporary strains of Vibrio cholerae O1 isolated from cholera patients in Kolkata, India. PLoSNegl Trop Dis. 2017:11:e0005386.
  • 9.Chowdhury G, Pazhani GP, Sarkar A, Rajendran K, Mukhopadhyay AK, Bhattacharya MK, Ghosh A, Ramamurthy T. Carbapenem Resistance in Clonally Distinct Clinical Strains of Vibrio fluvialis Isolated from Diarrheal Samples. Emerg Infect Dis. 2016:22:1754-1761.
  • 10.Adewale AK, Pazhani GP, Abiodun IB, Afolabi O, Kolawole OD, Mukhopadhyay AK, Ramamurthy T. Unique Clones of Vibrio cholerae O1 El Tor with Haitian Type ctxB Allele Implicated in the Recent Cholera Epidemics from Nigeria, Africa. PLoS One. 2016:11:e0159794.
  • 11.Das B, Pazhani GP, Sarkar A, Mukhopadhyay AK, Nair GB, Ramamurthy T. Molecular evolution and functional divergence of Vibrio cholerae. CurrOpin Infect Dis. 2016:29:520-527.
  • 12.Ghosh R, Sharma NC, Halder K, Bhadra RK, Chowdhury G, Pazhani GP, Shinoda S, Mukhopadhyay AK, Nair GB, Ramamurthy T. Phenotypic and Genetic Heterogeneity in Vibrio cholerae O139 Isolated from Cholera Cases in Delhi, India during 2001-2006. Front Microbiol. 2016:7:1250.
  • 13.Chowdhury G, Bhadra RK, Bag S, Pazhani GP, Das B, Basu P, Nagamani K, Nandy RK, Mukhopadyay AK, Ramamurthy T. Rugose atypical Vibrio cholerae O1 El Tor responsible for 2009 cholera outbreak in India. J Med Microbiol. 2016:65:1130-1136.
  • 14.Prabhakaran DM, Chowdhury G, Pazhani GP, Ramamurthy T, Thomas S. Draft Genome Sequence of an Environmental trh+ Vibrio parahaemolyticus K23 Strain Isolated from Kerala, India. Genome Announc. 2016:4: e00282-16. doi: 10.1128/genomeA.00282-16.
  • 15.Elisabeth Njamkepo, NizarFawal, Alicia Tran-Dien, Jane Hawkey, Nancy Strockbine, Claire Jenkins, Kaisar A Talukder, Raymond Bercion, Konstantin Kuleshov, RenátaKolínská, Julie E Russell, Lidia Kaftyreva, Marie Accou-Demartin, Andreas Karas, Olivier Vandenberg, Alison E Mather, Carl J Mason, Andrew J Page, Thandavarayan Ramamurthy, Chantal Bizet, AndrzejGamian, Isabelle Carle, Amy Gassama Sow, Christiane Bouchier, Astrid Louise Wester, Monique Lejay-Collin, Marie-Christine Fonkoua, Simon Le Hello, Martin J Blaser, Cecilia Jernberg, Corinne Ruckly, Audrey Merens, Anne-Laure Page, Martin Aslett, Peter Roggentin, Angelika Fruth, Erick Denamur, MalabiVenkatesan, HervéBercovier, LadapornBodhidatta, Chien-Shun Chiou, Dominique Clermont, Bianca Colonna, Svetlana Egorova, Gururaja P Pazhani,Analia V Ezernitchi, GhislaineGuigon, Simon R Harris, Hidemasa Izumiya, AgnieszkaKorzeniowska-Kowal, Anna Lutyńska, MalikaGouali, Francine Grimont, Céline Langendorf, Monika Marejková, Lorea AM Peterson, Guillermo Perez-Perez, Antoinette Ngandjio, Alexander Podkolzin, Erika Souche, MariiaMakarova, German A Shipulin, Changyun Ye, Helena zemlickova, MariaHerpay, Patrick AD Grimont, Julian Parkhill, Philippe Sansonetti, Kathryn E Holt, Sylvain Brisse, Nicholas R Thomson, François-Xavier Weill. Global phylogeography and evolutionary history of Shigelladysenteriae type 1. Nature Microbiology. 2016 : 1 : 16027.
  • 16.Sarkar A, Pazhani GP, Chowdhury G, Ghosh A, Ramamurthy T. Attributes of carbapenemase encoding conjugative plasmid pNDM-SAL from an extensively drug-resistant Salmonella entericaSerovarSenftenberg. Front Microbiol. 2015:6:969.
  • 17.Bhattacharya D, Dey S, Pazhani GP, Ramamurthy T, Parande MV, Kholkute SD, Roy S. Vibrio cholerae O1 El Tor variant and emergence of Haitian ctxB variant in the strains isolated from South India. Med MicrobiolImmunol. 2016:205:195-200
  • 18.Sarkar A, Pazhani GP, Chowdhury G, Ghosh A, Ramamurthy T. Attributes of carbapenemase encoding conjugative plasmid pNDM-SAL from an extensively drug-resistant Salmonella entericaSerovarSenftenberg. Front Microbiol. 2015:6:969.
  • 19.Sarkar A, Pazhani GP, Dharanidharan R, Ghosh A, and Ramamurthy T. Characterization of Integron-associated Gene Cassettes and other Antimicrobial Resistance Genes in EnterotoxigenicBacteroidesfragilis.Anaerobe. 2015:33:18-24.
  • 20.Dutta S, Pazhani GP, Nataro JP, and Ramamurthy T. Heterogenic Virulence in a DiarrheagenicEscherichia coli: Evidence for an EPEC Expressing Heat-labile Toxin of ETEC. Int J Med Microbiol. 2015:305:47-54. (Joint first author)
  • 21.Calcuttawala F, Hariharan C, Pazhani GP, Ghosh S, Ramamurthy T. Activity spectrum of colicins produced by Shigellasonneiand genetic mechanism of colicin resistance in conspecific S. sonneistrains and Escherichia coli. Antimicrob Agents Chemother. 2015:59:152-158.
  • 22.Ghosh P, Naha A, Pazhani GP, Ramamurthy T, Mukhopadhyay AK. Genetic Traits of Vibrio cholerae O1 Haitian Isolates That Are Absent in Contemporary Strains from Kolkata, India. PLoS One. 2014:9:e112973.
  • 23.Mullick S, Mukherjee A, Ghosh S, Pazhani GP, Sur D, Manna B, Nataro JP, Levine MM, Ramamurthy T, Chawla-Sarkar M. Community Based Case-Control Study of Rotavirus Gastroenteritis among Young Children during 2008-2010 Reveals Vast Genetic Diversity and Increased Prevalence of G9 Strains in Kolkata. PLoS One. 2014:9:e112970.
  • 24.Ghosh A, Sarkar A, Chowdhury G, Pazhani GP, andRamamurthy T. Over view on the New Delhi Metallo-β-Lactamase (NDM)-producers. Proc Indian NatnSci Acad. 2014:80:547-563.
  • 25.Ramamurthy T, Ghosh A, Pazhani GP and Shinoda S. Current perspectives on viable non-culturable (VBNC) pathogenic bacteria. Front. Public Health. 2014: 2:103. Doi: 10.3389/fpubh.2014.00103.
  • 26.Bhowmik SK, Pazhani GP and Ramamurthy T. Phylogenetic Analyses of Thermostable-Direct Hemolysin Encoding (tdh) and tdh-Related Gene (trh) Sequencesin Vibriosother Gram-negative Organisms. Biomed Res Int. 2014: 576528.
  • 27.Ramamurthy T, Chowdhury G, and Pazhani GP andShinoda S. Vibrio fluvialis an unrecognised emerging pathogen. Front Microbiol. 2014:5:91.
  • 28.Ghosh S, Pazhani GP, Niyogi SK, Nataro JP, and Ramamurthy T. Genetic Characterization of Shigellaspecies Isolated from Diarrheal and Asymptomatic Children from Kolkata, India. J Med Microbiol. 2014:63:903-910. (Joint first author).
  • 29.Pazhani GP, Bhowmick SK, Ghosh S, Guin S, Dutta S, Rajendran K, Saha DR, Nandy RK, Bhattacharya MK, Mukhopadhyay AK and Ramamurthy T. Trends in the Epidemiology of Pandemic and Non-pandemic Strains of Vibrio parahaemolyticus in Kolkata, India. PLoSNegl Trop Dis. 2014:8:e2815.
  • 30.Kammili N, Cherukuri N, Palvai S, Pazhani GP, Ramamurthy T, Rao JV, and Anuradha PR. Molecular epidemiology of extended spectrum β-lactamase-producing Escherichia coli and Klebsiellapneumoniae in a tertiary care hospital. Indian J Med Microbiol. 2014; 32 205-207.
  • 31.Kanungo S, Sen B, Ramamurthy T, Sur D, Manna B, Pazhani GP, Chowdhury G, Jhunjhunwala P, Nandy RK, Koley H, Bhattacharya MK, Gupta S, Goel G, Dey B, M T, Nair GB, Ghosh A, Mahalanabis D. Safety and immunogenicity of a live oral recombinant cholera vaccine VA1.4: a randomized, placebo controlled trial in healthy adults in a cholera endemic area in Kolkata, India. PLoS One. 2014:7:e99381.
  • 32.Chowdhury, G, SarkarA ,Pazhani GP, Mukhopadhyay AK, Bhattacharya MK and Ramamurthy T. An Outbreak of Foodborne Gastroenteritis Caused by Dual Pathogens, Salmonella entericaserovarWeltevreden and Vibrio fluvialis in Kolkata, India. Foodborne Pathog Dis. 2013:10:904-906.
  • 33.Ramamurthy D, Pazhani GP, Sarkar A, Nandy RK, Rajendran K, Sur D, Manna B, and RamamurthyT. Case-Control study on the role of EnterotoxigenicBacteroidesfragilis as a cause of diarrhea among Children in Kolkata, India. PLOS One. 2013: 8(4): e60622.
  • 34.Chowdhury, G., Ghosh S, Pazhani GP, Paul PK, Maji D, Mukhopadhyay AK, and Ramamurthy T. Molecular typing of pandemic and non-pandemic strains of Vibrio parahaemolyticus-linked with an uutbreak of diarrhea in North 24 Parganas, West Bengal, India. Foodborne Pathog Dis. 2013:10:338-342.
  • 35.Dutta S, Guin S, Ghosh S, Pazhani GP, Rajendran K, Bhattacharya MK, Takeda Y, Nair GB and Ramamurthy T. Trends in the Prevalence of DiarrheagenicEscherichia coli among Hospitalized Diarrheal Patients in Kolkata, India. PLOS One 2013:8(2): e56068.
  • 36.Dutta D, Chowdhury G, Pazhani GP, Guin S, Dutta S, Ghosh S, Rajendran K, Nandy RK, Mukhopadhyay AK, Bhattacharya MK, Mitra U, Takeda Y, Nair GB, and Ramamurthy T. Vibrio cholerae Non-O1, Non-O139 Serogroups and Cholera-like Diarrhea, Kolkata, India. Emerg Infect Dis. 2013:19:464-467.
  • 37.Mullick S, Mukherjee A, Ghosh S, Pazhani GP, Sur D, Manna B, Nataro JP, Levine MM, Ramamurthy T, Chawla-Sarkar M. Genomic analysis of human rotavirus strains G6P[14] and G11P[25] isolated from Kolkata in 2009 reveals interspecies transmission and complex reassortment events. Infect Genet Evol. 2013:14:15-21.
  • 38.Chowdhury G, Pazhani GP, Dutta D, Guin S, Dutta S, Ghosh S, Izumiya H, Asakura M, Yamasaki S, Takeda Y, Arakawa E, Watanabe H, Mukhopadhyay AK, Bhattacharya MK, Rajendran K, Nair GB, Ramamurthy T. Vibrio fluvialis in Patients with Diarrhea, Kolkata, India. Emerg Infect Dis. 2012:18:1868-71.
  • 39.PreethiSudha VB, Sheeba G, PazhaniGP, Ramamurthy T., Nair GB, and Padma V. Storing drinking water in copper pots kills contaminating diarrhoeagenic bacteria. J Health PopulNutr. 2012: 1:17-21.
  • 40.Naha A, Pazhani GP, Ganguly M, Ghosh S, Ramamurthy T, Nandy RK, Nair GB,Takeda Y, Mukhopadhyay AK. Development and Evaluation of a PCR Assay for Tracking the Emergence and Dissemination of Haitian Variant ctxB in Vibrio cholerae O1 Strains Isolated from Kolkata, India. J ClinMicrobiol. 2012:50:1733-1736.
  • 41.Ghosh S, Pazhani GP, Chowdhury G, Guin S, Dutta S, Rajendran K, Bhattacharya MK, Takeda Y, Niyogi SK, Nair GB, and Ramamurthy T. Genetic characteristics and changing antimicrobial resistance patterns among Shigellaspecies isolated from Hospitalized diarrheal patients in Kolkata, India. J Med Microbiol. 2011: 60:1460 – 1466. (Joint first author)
  • 42.Pazhani GP, Chakraborty S, Fujihara K, Yamasaki AS, Ghosh A, Nair GB and Ramamurthy T. QRDR mutations, Efflux system and Antimicrobial resistance genes in enterotoxigenic Escherichia coli isolated from an outbreak of diarrhoea in Ahmadabad, India. Indian J Med Res. 2011:134:214-223.
  • 43.Chowdhury G, Pazhani GP, Ghosh A, Nair GB, and Ramamurthy T. Transferable plasmid-mediated quinolone resistance in association with extended-spectrum beta-lactamases and fluoroquinolone acetylating aminoglycoside-6’-N-acetyltransferase in clinical isolates of Vibrio fluvialis. Int J Antimicrob Agents. 2011: 38:169-173.
  • 44.Arunachalam, G, Subramanian N, PazhaniGP., and Ravichandran V. Anti-inflammatory activity of methanolic extract of EcliptaprostrataL. (Astearaceae). African Journal of Pharmacy and Pharmacology. 2009:3: 097-100.
  • 45.Mahalanabis D, Ramamurthy T, Nair GB, Ghosh A, Shaikh S, Sen B, Thungapathra M, Ghosh RK, Pazhani GP, Nandy RK, Jana S, and Bhattacharya SK. Randomized placebo controlled human volunteer trial of a live oral cholera vaccine VA1.3 for safety and immune response. Vaccine. 2009; 27:4850-4856.
  • 46.Chatterjee S, Patra T, Ghosh K, Raychoudhuri A, Pazhani GP, Das M, Sarkar B, Bhadra RK, Mukhopadhyay AK, Takeda Y, Nair GB, Ramamurthy T, and Nandy RK. Vibrio cholerae O1 clinical strains isolated in 1992 in Kolkata with progenitor traits of the 2004 Mozambique variant. J Med Microbiol. 2009;58:239-247.
  • 47.Arunachalam G,Subramanian N, Pazhani GP, Karunanithi M and Ravichandran, V Evaluation of Anti-inflammatory Activity of Methanol extract of SolanumnigrumLinn (Solanaceae). Iranian Journal of Pharmaceutical Sciences. 2009: 5 ; 151 – 156.
  • 48.Arunachalam G,Subramanian N, Pazhani GP, Ravichandran V, Karunanithi M and Nepolean R. Anxiolytic, Antidepressant and Anti-inflammatory Activities of Methanol extract of MomordicacharantiaLinn leaves (Cucurbitaceae). Iranian Journal of Pharmacology and Therapeutics. 2008:7: 43 – 47.
  • 49.Kam KM, Luey CK, Parsons MB, Cooper KL, Nair GB, Alam M, Islam MA, Cheung DT, Chu YW, Ramamurthy T, Pazhani GP, Bhattacharya SK, Watanabe H, Terajima J, Arakawa E, Ratchtrachenchai OA, Huttayananont S, Ribot EM, Gerner-Smidt P, and Swaminathan B; Vibrio parahaemolyticusPulseNet PFGE Protocol Working Group. Evaluation and validation of a PulseNet standardized pulsed-field gel electrophoresis protocol for subtyping Vibrio parahaemolyticus: an international multicenter collaborative study. J ClinMicrobiol. 2008: 46:2766-2773.
  • 50.Pazhani GP, Niyogi SK, Singh AK, Sen B, Taneja N, Kundu M, Yamasaki S, and Ramamurthy T. Molecular characterization of multidrug-resistant Shigellaspecies isolated from epidemic and endemic cases of shigellosis in India. J Med Microbiol. 2008: 57:856-863.
  • 51.Raychoudhuri A, Chatterjee S, Pazhani GP, Nandy RK, Bhattacharya MK, Bhattacharya SK, Ramamurthy T, and Mukhopadhyay AK. Molecular characterization of recent Vibrio cholerae O1, El Tor, Inaba strains isolated from hospitalized patients in Kolkata, India. J Infect. 2007: 55:431-438.
  • 52.Sur D, Dutta S, Sarkar BL, Manna B, Bhattacharya MK, Datta KK, Saha A, Dutta B, Pazhani GP, Choudhuri AR, and Bhattacharya SK. Occurrence, significance & molecular epidemiology of cholera outbreaks in West Bengal. Indian J Med Res. 2007 125:772-776.
  • 53.Dutta B, Ghosh R, Sharma NC, Pazhani GP, Taneja N, Raychowdhuri A, Sarkar BL, Mondal SK, Mukhopadhyay AK, Nandy RK, Bhattacharya MK, Bhattacharya SK, and Ramamurthy T. Spread of cholera with newer clones of Vibrio cholerae O1 El Tor, serotype inaba, in India. J ClinMicrobiol. 2006: 44:3391-3393.
  • 54.Sinha S, Pazhani GP, Sen B, and Niyogi SK. Molecular Characterization of Salmonella enterica serotype Worthington isolated from childhood diarrhea cases in Kolkata, India. Jpn J Infect Dis. 2006: 59:275-276.
  • 55.Alam M, Nur-A-Hasan, Ahsan S, Pazhani GP, Tamura K, Ramamurthy T, Gomes DJ, Rahman SR, Islam A, Akhtar F, Shinoda S, Watanabe H, Faruque SM, and Nair GB. Phenotypic and molecular characteristics of Escherichia coli isolated from aquatic environment of Bangladesh. MicrobiolImmunol. 2006: 50:359-370.
  • 56.Pazhani GP, Ramamurthy T, Mitra U, Bhattacharya SK, and Niyogi SK. Species diversity and antimicrobial resistance of Shigella spp. isolated between 2001 and 2004 from hospitalized children with diarrhoea in Kolkata (Calcutta), India. Epidemiol Infect. 2005: 133:1089-1095.
  • 57.Pazhani GP, Sarkar B, Ramamurthy T, Bhattacharya SK, Takeda Y, and Niyogi SK. Clonal multidrug-resistant Shigelladysenteriae type 1 strains associated with epidemic and sporadic dysenteries in eastern India. Antimicrob Agents Chemother. 2004: 48:681-684.
  • 58.NiyogiSK, and Pazhani GP. MultiresistantShigella species isolated from childhood diarrhea cases in Kolkata, India. Jpn J Infect Dis. 2003: 56:33-34.
  • 59.Pazhani GP, Subramanian N, Arunachalam G, Hemalatha S, and Ravichandiran V Antidiarrhoealpotential ofElephantopusscaber Linn leaf extract. Indian drugs. 2001: 38:129-131.

Book Chapter Contribution

  • 1.Pazhani GP and Ramamurthy T. 2012. Molecular pathogenesis, epidemiology and drug resistance of Shigella species. In: Foodborne and Waterborne Bacterial Pathogens: Epidemiology, Evolution and Molecular Biology. Shah M. Faruque (Ed). Caister Academic Press, UK. ISBN: 978-908230-06-3, Page No.77-112.

Reviewer for Scientific Journals

  • BMC microbiology
  • Journal of Health, Population and Nutrition
  • Journal of Epidemiology and Global Health
  • New Microbes and New Infections
  • Molecular Biology, Bioinformatics and Tissue culture

Fellowship/Awards/Honors Received

  • Best Teacher Award at National Institute of Pharmaceutical Education & Research (NIPER), November 2016
  • President’s Inspired Teacher – The highest civilian recognition for university-level teachers, April 2016
  • DST – SERB Early Career Award, January 2016
  • Senior Research Fellowship (ICMR), Sep 2001 – Aug 2004
Research and Publication

Summary of Academic and Research Profile

  • A self-started and result-oriented professional with 20+ years of experience in Teaching, Administrative Activities Management, Research, Lab Management, Project Management, Papers Presentation, Publications, and so on. 
  • Extensive experience in designing and executing practical’s for B. Pharm., M. Pharm., M.S. Pharm., & Pharm. D Students along with the competency in preparing grade cards and scrupulous in maintaining the Lab
  • Expertise in teaching & guiding students in the project work and instrumental in various project activities like Global Enteric Multi-centric Study funded by Gates Foundation, US
  • Successfully played a vital role as a Dean-In-Charge at National Institute of Pharmaceutical Education & Research, Kolkata, India
  • Demonstrated capability in diligently examining and managing activities of interpretation of data and publishing data
  • Track record of designing and executing experimental protocols.

Research Grants Received

  • Sensitization of Colicin Resistant E. coli by Cell-Penetrating Peptides (Role: Principal Investigator; funding agency: DST; Project File No. ECR/520/000520; Current status: completed 2020)
  • Molecular Epidemiology of Clostridium difficile: A re-emerging pathogen of Public Health Importance (Role: Co-Investigator; funding agency: DBT Twinning Project; Completed in May 2015)

Advanced Research Training

  • Trained on PulseNet cholera database of PFGE fingerprints setup and use in the WHO CHOLDInet& International Network at Enteric Diseases Laboratory branch, Center for Diseases Control & Prevention, Atlanta, USA (Jan – Feb 2010)

Research area of Interest

  • Isolation & Identification of new antimicrobials or antibiotic-resistant modulators from  natural sources such as plants, microbes, marine components, etc.,
  • Chemical fingerprinting of bioactive extracts by spectral methods.
  • Development of new synthetic methodologies for bioactive molecules obtained from a natural source

List of publication

  • 1.P. Kanagavalli, S. Radhakrishnan, G. Pandey, V. Ravichandiran, G. PerumalPazhani, M. Veerapandian, G. Hegde, Electrochemical Tracing of Butein Using Carbon Nanoparticles Interfaced Electrode Processed from Biowaste. Electroanalysis. 2020 :32: 1220.
  • 2.Guin S, Saravanan M , Anjay, Chowdhury G, Pazhani GP, Ramamurthy T, Das SC Pathogenic Vibrio parahaemolyticusindiarrhoeal patients, fish and aquatic environments and their potential for inter-source transmission. Heliyon 5 (2019): e01743
  • 3.Darshani P, Gumpu MB, Thumpati P, Rayappan JBB, Ravichandiran V, Pazhani GP*, Veerapandian M. Chemically synthesized butein and butin: Optical, structure and electrochemical redox functionality at electrode interface. J PhotochemPhotobiol B. 2018: 182:122-129. (*Corresponding author)
  • 4.Das SC, Ramamurthy T, Ghosh S, Pazhani GP, Sen T, Singh R. Molecular characterization of locus of enterocyte effacement pathogenicity island in shigatoxicEscherichia coli isolated from human & cattle in West Bengal, India. Indian J Med Res. 2017:146:S30-S37.
  • 5.Pazhani GP*, Ravichandiran V, Veerapandian M, Ramamurthy T. Bioinformatics on Unproven Secretion Systems of Vibrio Parahaemolyticus. Sci J Biomed Eng Biomed Sci. 2017;1: 020-025 (*Corresponding Author)
  • 6.De R, Ramamurthy T, Sarkar BL, Mukhopadhyay AK, Pazhani GP, Sarkar S, Dutta S, Nair GB. Retrospective genomic analysis of Vibrio cholerae O1 El Tor strains from different places in India reveals the presence of ctxB-7 allele found in Haitian isolates. Epidemiol Infect. 2017:145:2212-2220.
  • 7.Calcuttawala F, Hariharan C, Pazhani GP, Saha DR, Ramamurthy T. Characterization of E-type colicinogenic plasmids from Shigellasonnei. FEMS MicrobiolLett. 2017:1;364.
  • 8.Imamura D, Morita M, Sekizuka T, Mizuno T, Takemura T, Yamashiro T, Chowdhury G, Pazhani GP, Mukhopadhyay AK, Ramamurthy T, Miyoshi SI, Kuroda M, Shinoda S, Ohnishi M. Comparative genome analysis of VSP-II and SNPs reveals heterogenic variation in contemporary strains of Vibrio cholerae O1 isolated from cholera patients in Kolkata, India. PLoSNegl Trop Dis. 2017:11:e0005386.
  • 9.Chowdhury G, Pazhani GP, Sarkar A, Rajendran K, Mukhopadhyay AK, Bhattacharya MK, Ghosh A, Ramamurthy T. Carbapenem Resistance in Clonally Distinct Clinical Strains of Vibrio fluvialis Isolated from Diarrheal Samples. Emerg Infect Dis. 2016:22:1754-1761.
  • 10.Adewale AK, Pazhani GP, Abiodun IB, Afolabi O, Kolawole OD, Mukhopadhyay AK, Ramamurthy T. Unique Clones of Vibrio cholerae O1 El Tor with Haitian Type ctxB Allele Implicated in the Recent Cholera Epidemics from Nigeria, Africa. PLoS One. 2016:11:e0159794.
  • 11.Das B, Pazhani GP, Sarkar A, Mukhopadhyay AK, Nair GB, Ramamurthy T. Molecular evolution and functional divergence of Vibrio cholerae. CurrOpin Infect Dis. 2016:29:520-527.
  • 12.Ghosh R, Sharma NC, Halder K, Bhadra RK, Chowdhury G, Pazhani GP, Shinoda S, Mukhopadhyay AK, Nair GB, Ramamurthy T. Phenotypic and Genetic Heterogeneity in Vibrio cholerae O139 Isolated from Cholera Cases in Delhi, India during 2001-2006. Front Microbiol. 2016:7:1250.
  • 13.Chowdhury G, Bhadra RK, Bag S, Pazhani GP, Das B, Basu P, Nagamani K, Nandy RK, Mukhopadyay AK, Ramamurthy T. Rugose atypical Vibrio cholerae O1 El Tor responsible for 2009 cholera outbreak in India. J Med Microbiol. 2016:65:1130-1136.
  • 14.Prabhakaran DM, Chowdhury G, Pazhani GP, Ramamurthy T, Thomas S. Draft Genome Sequence of an Environmental trh+ Vibrio parahaemolyticus K23 Strain Isolated from Kerala, India. Genome Announc. 2016:4: e00282-16. doi: 10.1128/genomeA.00282-16.
  • 15.Elisabeth Njamkepo, NizarFawal, Alicia Tran-Dien, Jane Hawkey, Nancy Strockbine, Claire Jenkins, Kaisar A Talukder, Raymond Bercion, Konstantin Kuleshov, RenátaKolínská, Julie E Russell, Lidia Kaftyreva, Marie Accou-Demartin, Andreas Karas, Olivier Vandenberg, Alison E Mather, Carl J Mason, Andrew J Page, Thandavarayan Ramamurthy, Chantal Bizet, AndrzejGamian, Isabelle Carle, Amy Gassama Sow, Christiane Bouchier, Astrid Louise Wester, Monique Lejay-Collin, Marie-Christine Fonkoua, Simon Le Hello, Martin J Blaser, Cecilia Jernberg, Corinne Ruckly, Audrey Merens, Anne-Laure Page, Martin Aslett, Peter Roggentin, Angelika Fruth, Erick Denamur, MalabiVenkatesan, HervéBercovier, LadapornBodhidatta, Chien-Shun Chiou, Dominique Clermont, Bianca Colonna, Svetlana Egorova, Gururaja P Pazhani,Analia V Ezernitchi, GhislaineGuigon, Simon R Harris, Hidemasa Izumiya, AgnieszkaKorzeniowska-Kowal, Anna Lutyńska, MalikaGouali, Francine Grimont, Céline Langendorf, Monika Marejková, Lorea AM Peterson, Guillermo Perez-Perez, Antoinette Ngandjio, Alexander Podkolzin, Erika Souche, MariiaMakarova, German A Shipulin, Changyun Ye, Helena zemlickova, MariaHerpay, Patrick AD Grimont, Julian Parkhill, Philippe Sansonetti, Kathryn E Holt, Sylvain Brisse, Nicholas R Thomson, François-Xavier Weill. Global phylogeography and evolutionary history of Shigelladysenteriae type 1. Nature Microbiology. 2016 : 1 : 16027.
  • 16.Sarkar A, Pazhani GP, Chowdhury G, Ghosh A, Ramamurthy T. Attributes of carbapenemase encoding conjugative plasmid pNDM-SAL from an extensively drug-resistant Salmonella entericaSerovarSenftenberg. Front Microbiol. 2015:6:969.
  • 17.Bhattacharya D, Dey S, Pazhani GP, Ramamurthy T, Parande MV, Kholkute SD, Roy S. Vibrio cholerae O1 El Tor variant and emergence of Haitian ctxB variant in the strains isolated from South India. Med MicrobiolImmunol. 2016:205:195-200
  • 18.Sarkar A, Pazhani GP, Chowdhury G, Ghosh A, Ramamurthy T. Attributes of carbapenemase encoding conjugative plasmid pNDM-SAL from an extensively drug-resistant Salmonella entericaSerovarSenftenberg. Front Microbiol. 2015:6:969.
  • 19.Sarkar A, Pazhani GP, Dharanidharan R, Ghosh A, and Ramamurthy T. Characterization of Integron-associated Gene Cassettes and other Antimicrobial Resistance Genes in EnterotoxigenicBacteroidesfragilis.Anaerobe. 2015:33:18-24.
  • 20.Dutta S, Pazhani GP, Nataro JP, and Ramamurthy T. Heterogenic Virulence in a DiarrheagenicEscherichia coli: Evidence for an EPEC Expressing Heat-labile Toxin of ETEC. Int J Med Microbiol. 2015:305:47-54. (Joint first author)
  • 21.Calcuttawala F, Hariharan C, Pazhani GP, Ghosh S, Ramamurthy T. Activity spectrum of colicins produced by Shigellasonneiand genetic mechanism of colicin resistance in conspecific S. sonneistrains and Escherichia coli. Antimicrob Agents Chemother. 2015:59:152-158.
  • 22.Ghosh P, Naha A, Pazhani GP, Ramamurthy T, Mukhopadhyay AK. Genetic Traits of Vibrio cholerae O1 Haitian Isolates That Are Absent in Contemporary Strains from Kolkata, India. PLoS One. 2014:9:e112973.
  • 23.Mullick S, Mukherjee A, Ghosh S, Pazhani GP, Sur D, Manna B, Nataro JP, Levine MM, Ramamurthy T, Chawla-Sarkar M. Community Based Case-Control Study of Rotavirus Gastroenteritis among Young Children during 2008-2010 Reveals Vast Genetic Diversity and Increased Prevalence of G9 Strains in Kolkata. PLoS One. 2014:9:e112970.
  • 24.Ghosh A, Sarkar A, Chowdhury G, Pazhani GP, andRamamurthy T. Over view on the New Delhi Metallo-β-Lactamase (NDM)-producers. Proc Indian NatnSci Acad. 2014:80:547-563.
  • 25.Ramamurthy T, Ghosh A, Pazhani GP and Shinoda S. Current perspectives on viable non-culturable (VBNC) pathogenic bacteria. Front. Public Health. 2014: 2:103. Doi: 10.3389/fpubh.2014.00103.
  • 26.Bhowmik SK, Pazhani GP and Ramamurthy T. Phylogenetic Analyses of Thermostable-Direct Hemolysin Encoding (tdh) and tdh-Related Gene (trh) Sequencesin Vibriosother Gram-negative Organisms. Biomed Res Int. 2014: 576528.
  • 27.Ramamurthy T, Chowdhury G, and Pazhani GP andShinoda S. Vibrio fluvialis an unrecognised emerging pathogen. Front Microbiol. 2014:5:91.
  • 28.Ghosh S, Pazhani GP, Niyogi SK, Nataro JP, and Ramamurthy T. Genetic Characterization of Shigellaspecies Isolated from Diarrheal and Asymptomatic Children from Kolkata, India. J Med Microbiol. 2014:63:903-910. (Joint first author).
  • 29.Pazhani GP, Bhowmick SK, Ghosh S, Guin S, Dutta S, Rajendran K, Saha DR, Nandy RK, Bhattacharya MK, Mukhopadhyay AK and Ramamurthy T. Trends in the Epidemiology of Pandemic and Non-pandemic Strains of Vibrio parahaemolyticus in Kolkata, India. PLoSNegl Trop Dis. 2014:8:e2815.
  • 30.Kammili N, Cherukuri N, Palvai S, Pazhani GP, Ramamurthy T, Rao JV, and Anuradha PR. Molecular epidemiology of extended spectrum β-lactamase-producing Escherichia coli and Klebsiellapneumoniae in a tertiary care hospital. Indian J Med Microbiol. 2014; 32 205-207.
  • 31.Kanungo S, Sen B, Ramamurthy T, Sur D, Manna B, Pazhani GP, Chowdhury G, Jhunjhunwala P, Nandy RK, Koley H, Bhattacharya MK, Gupta S, Goel G, Dey B, M T, Nair GB, Ghosh A, Mahalanabis D. Safety and immunogenicity of a live oral recombinant cholera vaccine VA1.4: a randomized, placebo controlled trial in healthy adults in a cholera endemic area in Kolkata, India. PLoS One. 2014:7:e99381.
  • 32.Chowdhury, G, SarkarA ,Pazhani GP, Mukhopadhyay AK, Bhattacharya MK and Ramamurthy T. An Outbreak of Foodborne Gastroenteritis Caused by Dual Pathogens, Salmonella entericaserovarWeltevreden and Vibrio fluvialis in Kolkata, India. Foodborne Pathog Dis. 2013:10:904-906.
  • 33.Ramamurthy D, Pazhani GP, Sarkar A, Nandy RK, Rajendran K, Sur D, Manna B, and RamamurthyT. Case-Control study on the role of EnterotoxigenicBacteroidesfragilis as a cause of diarrhea among Children in Kolkata, India. PLOS One. 2013: 8(4): e60622.
  • 34.Chowdhury, G., Ghosh S, Pazhani GP, Paul PK, Maji D, Mukhopadhyay AK, and Ramamurthy T. Molecular typing of pandemic and non-pandemic strains of Vibrio parahaemolyticus-linked with an uutbreak of diarrhea in North 24 Parganas, West Bengal, India. Foodborne Pathog Dis. 2013:10:338-342.
  • 35.Dutta S, Guin S, Ghosh S, Pazhani GP, Rajendran K, Bhattacharya MK, Takeda Y, Nair GB and Ramamurthy T. Trends in the Prevalence of DiarrheagenicEscherichia coli among Hospitalized Diarrheal Patients in Kolkata, India. PLOS One 2013:8(2): e56068.
  • 36.Dutta D, Chowdhury G, Pazhani GP, Guin S, Dutta S, Ghosh S, Rajendran K, Nandy RK, Mukhopadhyay AK, Bhattacharya MK, Mitra U, Takeda Y, Nair GB, and Ramamurthy T. Vibrio cholerae Non-O1, Non-O139 Serogroups and Cholera-like Diarrhea, Kolkata, India. Emerg Infect Dis. 2013:19:464-467.
  • 37.Mullick S, Mukherjee A, Ghosh S, Pazhani GP, Sur D, Manna B, Nataro JP, Levine MM, Ramamurthy T, Chawla-Sarkar M. Genomic analysis of human rotavirus strains G6P[14] and G11P[25] isolated from Kolkata in 2009 reveals interspecies transmission and complex reassortment events. Infect Genet Evol. 2013:14:15-21.
  • 38.Chowdhury G, Pazhani GP, Dutta D, Guin S, Dutta S, Ghosh S, Izumiya H, Asakura M, Yamasaki S, Takeda Y, Arakawa E, Watanabe H, Mukhopadhyay AK, Bhattacharya MK, Rajendran K, Nair GB, Ramamurthy T. Vibrio fluvialis in Patients with Diarrhea, Kolkata, India. Emerg Infect Dis. 2012:18:1868-71.
  • 39.PreethiSudha VB, Sheeba G, PazhaniGP, Ramamurthy T., Nair GB, and Padma V. Storing drinking water in copper pots kills contaminating diarrhoeagenic bacteria. J Health PopulNutr. 2012: 1:17-21.
  • 40.Naha A, Pazhani GP, Ganguly M, Ghosh S, Ramamurthy T, Nandy RK, Nair GB,Takeda Y, Mukhopadhyay AK. Development and Evaluation of a PCR Assay for Tracking the Emergence and Dissemination of Haitian Variant ctxB in Vibrio cholerae O1 Strains Isolated from Kolkata, India. J ClinMicrobiol. 2012:50:1733-1736.
  • 41.Ghosh S, Pazhani GP, Chowdhury G, Guin S, Dutta S, Rajendran K, Bhattacharya MK, Takeda Y, Niyogi SK, Nair GB, and Ramamurthy T. Genetic characteristics and changing antimicrobial resistance patterns among Shigellaspecies isolated from Hospitalized diarrheal patients in Kolkata, India. J Med Microbiol. 2011: 60:1460 – 1466. (Joint first author)
  • 42.Pazhani GP, Chakraborty S, Fujihara K, Yamasaki AS, Ghosh A, Nair GB and Ramamurthy T. QRDR mutations, Efflux system and Antimicrobial resistance genes in enterotoxigenic Escherichia coli isolated from an outbreak of diarrhoea in Ahmadabad, India. Indian J Med Res. 2011:134:214-223.
  • 43.Chowdhury G, Pazhani GP, Ghosh A, Nair GB, and Ramamurthy T. Transferable plasmid-mediated quinolone resistance in association with extended-spectrum beta-lactamases and fluoroquinolone acetylating aminoglycoside-6’-N-acetyltransferase in clinical isolates of Vibrio fluvialis. Int J Antimicrob Agents. 2011: 38:169-173.
  • 44.Arunachalam, G, Subramanian N, PazhaniGP., and Ravichandran V. Anti-inflammatory activity of methanolic extract of EcliptaprostrataL. (Astearaceae). African Journal of Pharmacy and Pharmacology. 2009:3: 097-100.
  • 45.Mahalanabis D, Ramamurthy T, Nair GB, Ghosh A, Shaikh S, Sen B, Thungapathra M, Ghosh RK, Pazhani GP, Nandy RK, Jana S, and Bhattacharya SK. Randomized placebo controlled human volunteer trial of a live oral cholera vaccine VA1.3 for safety and immune response. Vaccine. 2009; 27:4850-4856.
  • 46.Chatterjee S, Patra T, Ghosh K, Raychoudhuri A, Pazhani GP, Das M, Sarkar B, Bhadra RK, Mukhopadhyay AK, Takeda Y, Nair GB, Ramamurthy T, and Nandy RK. Vibrio cholerae O1 clinical strains isolated in 1992 in Kolkata with progenitor traits of the 2004 Mozambique variant. J Med Microbiol. 2009;58:239-247.
  • 47.Arunachalam G,Subramanian N, Pazhani GP, Karunanithi M and Ravichandran, V Evaluation of Anti-inflammatory Activity of Methanol extract of SolanumnigrumLinn (Solanaceae). Iranian Journal of Pharmaceutical Sciences. 2009: 5 ; 151 – 156.
  • 48.Arunachalam G,Subramanian N, Pazhani GP, Ravichandran V, Karunanithi M and Nepolean R. Anxiolytic, Antidepressant and Anti-inflammatory Activities of Methanol extract of MomordicacharantiaLinn leaves (Cucurbitaceae). Iranian Journal of Pharmacology and Therapeutics. 2008:7: 43 – 47.
  • 49.Kam KM, Luey CK, Parsons MB, Cooper KL, Nair GB, Alam M, Islam MA, Cheung DT, Chu YW, Ramamurthy T, Pazhani GP, Bhattacharya SK, Watanabe H, Terajima J, Arakawa E, Ratchtrachenchai OA, Huttayananont S, Ribot EM, Gerner-Smidt P, and Swaminathan B; Vibrio parahaemolyticusPulseNet PFGE Protocol Working Group. Evaluation and validation of a PulseNet standardized pulsed-field gel electrophoresis protocol for subtyping Vibrio parahaemolyticus: an international multicenter collaborative study. J ClinMicrobiol. 2008: 46:2766-2773.
  • 50.Pazhani GP, Niyogi SK, Singh AK, Sen B, Taneja N, Kundu M, Yamasaki S, and Ramamurthy T. Molecular characterization of multidrug-resistant Shigellaspecies isolated from epidemic and endemic cases of shigellosis in India. J Med Microbiol. 2008: 57:856-863.
  • 51.Raychoudhuri A, Chatterjee S, Pazhani GP, Nandy RK, Bhattacharya MK, Bhattacharya SK, Ramamurthy T, and Mukhopadhyay AK. Molecular characterization of recent Vibrio cholerae O1, El Tor, Inaba strains isolated from hospitalized patients in Kolkata, India. J Infect. 2007: 55:431-438.
  • 52.Sur D, Dutta S, Sarkar BL, Manna B, Bhattacharya MK, Datta KK, Saha A, Dutta B, Pazhani GP, Choudhuri AR, and Bhattacharya SK. Occurrence, significance & molecular epidemiology of cholera outbreaks in West Bengal. Indian J Med Res. 2007 125:772-776.
  • 53.Dutta B, Ghosh R, Sharma NC, Pazhani GP, Taneja N, Raychowdhuri A, Sarkar BL, Mondal SK, Mukhopadhyay AK, Nandy RK, Bhattacharya MK, Bhattacharya SK, and Ramamurthy T. Spread of cholera with newer clones of Vibrio cholerae O1 El Tor, serotype inaba, in India. J ClinMicrobiol. 2006: 44:3391-3393.
  • 54.Sinha S, Pazhani GP, Sen B, and Niyogi SK. Molecular Characterization of Salmonella enterica serotype Worthington isolated from childhood diarrhea cases in Kolkata, India. Jpn J Infect Dis. 2006: 59:275-276.
  • 55.Alam M, Nur-A-Hasan, Ahsan S, Pazhani GP, Tamura K, Ramamurthy T, Gomes DJ, Rahman SR, Islam A, Akhtar F, Shinoda S, Watanabe H, Faruque SM, and Nair GB. Phenotypic and molecular characteristics of Escherichia coli isolated from aquatic environment of Bangladesh. MicrobiolImmunol. 2006: 50:359-370.
  • 56.Pazhani GP, Ramamurthy T, Mitra U, Bhattacharya SK, and Niyogi SK. Species diversity and antimicrobial resistance of Shigella spp. isolated between 2001 and 2004 from hospitalized children with diarrhoea in Kolkata (Calcutta), India. Epidemiol Infect. 2005: 133:1089-1095.
  • 57.Pazhani GP, Sarkar B, Ramamurthy T, Bhattacharya SK, Takeda Y, and Niyogi SK. Clonal multidrug-resistant Shigelladysenteriae type 1 strains associated with epidemic and sporadic dysenteries in eastern India. Antimicrob Agents Chemother. 2004: 48:681-684.
  • 58.NiyogiSK, and Pazhani GP. MultiresistantShigella species isolated from childhood diarrhea cases in Kolkata, India. Jpn J Infect Dis. 2003: 56:33-34.
  • 59.Pazhani GP, Subramanian N, Arunachalam G, Hemalatha S, and Ravichandiran V Antidiarrhoealpotential ofElephantopusscaber Linn leaf extract. Indian drugs. 2001: 38:129-131.

Book Chapter Contribution

  • 1.Pazhani GP and Ramamurthy T. 2012. Molecular pathogenesis, epidemiology and drug resistance of Shigella species. In: Foodborne and Waterborne Bacterial Pathogens: Epidemiology, Evolution and Molecular Biology. Shah M. Faruque (Ed). Caister Academic Press, UK. ISBN: 978-908230-06-3, Page No.77-112.

Reviewer for Scientific Journals

  • BMC microbiology
  • Journal of Health, Population and Nutrition
  • Journal of Epidemiology and Global Health
  • New Microbes and New Infections
Conferences - Papers presented
Awards, Achievements & Fellowships

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