Chetan is a:

1. Life member – Indian Science Congress Association (ISCA) – with voting rights.

2. Life Member – Indian Geotechnical Society (IGS) – with voting rights.

3. Life Member – Indian Virological Society (IVS) – No voting rights.

4. Full Member – World Society for Virology (WSV) – with voting rights.

5. Life Member – Society for Biological Chemists (India) (SBC(I)) – No voting rights.

6. Member – Screen Writers Association (SWA), Mumbai, India.