Hi Kaushik,

The best B.Sc. in Mathematics Degree Colleges in India are mentioned below:-

• St Xavier's College, Ahmedabad
• Presidency College, Chennai
• Government Arts College, Coimbatore
• Farook College, Kozhikode
• Patna Women's College, Patna
• Maharaja's College, Ernakulam
• Rajeswari Vedachalam Government Arts College, Chengalpattu
• Seethalakshmi Ramaswami College, Tiruchirappalli
• Government Brennen College, Thalassery
• Government Victoria College, Palakkad

Refer here for more info - https://university.careers360.com/colleges/list-of-bsc-in-mathematics-degree-colleges-in-india?ownership=Public/Government

Feel free to ask doubts in the Comment Section.

I hope this information helps you.

Good Luck!