| Member | : American Society for Microbiology (ASM), USA. (since 1994) |
| Member | : American Association for Advancement of Science (AAAS) USA. (since 1991) |
| Member | : Society for General Microbiology (SGM) England. (since 1983) |
| Member | : Pan American Marine Biotechnology Association (PAMBA) USA. (since 2003) |
| Life Member | : Association of Microbiologists of India (AMI) India. (since 1988) |
| Life Member | : Society of Biological Chemists of India (SBC) India. (since 1990) |
| Life Member | : Biotechnology Society of India (BSI) India. (since 1997) |
| Life Member | : Indian Association of Medical Microbiologists (IAMM) India. (since 1998) |
| Life Member | : Indian Science Congress Association (ISCA) Kolkata, India. (since 1988) |
| Life Member | : Bharatiya Vidya Bhavan, Mumbai, India. (since 1993) |
| Life Member | : Indian Drugs Association (IDA) India. (since 1990) |
| Life Member | : Association of Zoologists of India (AZI) India. (since 2007) |
| Member | : Indian Water Works Association (IWWA) India. (since 1987) |
| Member | : Association of Food Technologists of India (AFTI) India. (since 1989) |
