Hii Vanshika!
Some of the best Colleges across India offering bsc life sciences are -
*Lovely professional University , punjab
* St. Xavier's College , Maharastra
* Hansraj College , Delhi
*Gargi college , Delhi
* Miranda House , Delhi
* Din dayal upadhyay college , Delhi
*M.B Khalsa College , Madhya Pradesh
* Nizam college , Telangana
* Scottish Church College , West Bengal
Etc., In order to know Colleges in a particular state you want to take admissions, you need to specify it in your question. Hope this helps.
All the best!