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.
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