1. Division of Bacteriology, ICMR-National Institute of Cholera and Enteric Diseases, Kolkata, India
2. Department of Bioscience and Bioengineering, Indian Institute of Technology Roorkee (IITR), Roorkee, Uttarakhand, India
3. Centre for Nanotechnology, Indian Institute of Technology Roorkee (IITR), Roorkee, Uttarakhand, India