I will enlist down some of the top colleges for BA ECONOMICS HONS undergraduation course -

1. St. Xavier's College , Kolkata.
2. Lady Shri Ram College .
3. Hindu College .
4. Christ University, Bangalore.
5. Miranda House.
6. Presidency University, Kolkata.
7. Loyola College , Chennai.
8. Madras Christian College , Chennai.
9. Amity University , Gurgaon
10. Quantum School of Graduate Studies (Admission Office) Dehradun

Refer to the site below for more details about the same -

https://university.careers360.com/colleges/list-of-economics-universities-in-india

Best wishes. Thank you.