Hello Harsha,

The best colleges for Maths honours are as follows;

1. Manipal University, [MUJ] Jaipur.

2. Maulana Azad College, [MAC] Kolkata.

3. Asutosh College, Kolkata.

4. Charuchandra College, Kolkata.

5. Surendranath Evening College, [SEC] Kolkata.

6. Mahadevananda Mahavidyalaya, [MM] Kolkata.

7. St Xavier's College, [SXC], Kolkata.

Hooe this will help you. All the best.