1. Microbiology Division, National Institute of Cholera and Enteric Diseases
2. Microbiology Division, Calcutta Medical Research Institute
3. Sri Sakthi Amma Institute of Biomedical Research, Sri Narayani Hospital & Research Centre
4. Microbiology Division, Vardhaman Mahavir Medical College & Safdarjung Hospital
5. Microbiology Division, SDM College of Medical Sciences & Hospitals
6. Clinical Division, Dr. B. C. Roy Post Graduate Institute of Pediatric Sciences