Hello Aspirant,

The top colleges offering BSc mathematics in Kolkata are listed below

• St. Xavier's College (SXC)
• Ramakrishna mission Vivekananda centenary college Rahara (RKMVCC)
• Brainware university, Kolkata
• Ramakrishna mission residential college (RKMRC)
• Kingston education institute (KEI)
• Lady Brabourne college (LBC)
• Bethune college
• Scottish church college
• Jadavpur University
• Presidency university

You can find the entire list of colleges offering BSc mathematics (Hons.) in Kolkata in the link provided below

https://university.careers360.com/colleges/list-of-bsc(hons)-in-mathematics-universities-in-india?state=West%20Bengal&city=Kolkata

Hope this helps and Good luck