Best colleges for M.Sc. Life Sciences in Tamil Nadu are - 

1) AVVM Sri Pushpam College

2) Bishop Heber College

3) Sri Krishna Arts and Sciences College

4) PSG college of Arts and Sciences

5) Nirmala College for Women

Hello aspirant

Central University of Tamilnadu,thiruvarur is the best college for  M.sc life sciences integrated course in Tamil Nadu

For more details and information about the eligibility and other information use the link given below

Link:https://www.careers360.com/university/central-university-of-tamil-nadu-thiruvarur/msc-life-sciences-integrated-course

Hope helpful to you

Thank you