| Event title | 
Date | 
Organized by | 
| National Conference on Colloids and Emulsions of Natural and Synthetic Systems | 
February 2 – 4, 1996 | 
Department of Chemistry, Tripura University | 
| National Symposium on Recent Challenges in Chemistry | 
29 -31 March, 2001 | 
Department of Chemistry, Tripura University. | 
| National Seminar on ‘Impacts of Chemistry in life and Society’ | 
October 1-3, 2004 | 
  | 
| State level Seminar on ‘Frontier areas of Chemistry’ on the occasion of 150th Birth Anniversary of Acharjya P. C. Ray. | 
September 03, 2010 | 
Department of Chemistry, Tripura University. | 
| State level seminar-cum awareness programme on ‘Global Climate Changes and Clean Development mechanism: Issues and Impact’ under NAPCC, Govt. of India | 
September 06, 2010. | 
Department of Chemistry, TU and Sponsored by Department of Scienece, Technology & Environment, Govt. of Tripura |