Greetings, aspirant!

There are many colleges in West Bengal that offer BSc Biology or BSc Botany/Zoology The best of these include:-

• Presidency College, Kolkata
• Bethune College
• Vidyasagar College, Kolkata
• Vivekananda College, Kolkata
• Shri Shikshayatan College

As for BSc in Chemistry, the best colleges are:-

• Presidency College, Kolkata
• Visva Bharati University
• St Xavier's College, Kolkata
• Jadavpur University
• Bethune College
• Scottish Church College

Apart from these, there are many other colleges in West Bengal that offer BSc chemistry. For a comprehensive list, click on the link below:-

https://university.careers360.com/colleges/list-of-chemistry-degree-colleges-in-west-bengal

Hope this information helps

Best of luck!!