You can consider below names as these colleges are considered to be decet to pursue B.Com -

1. Loyola College, Chennai

2. Bishop Heber College, Tiruchirapalli

3. St. Xavier`s College, Kolkata

4. The Women's Christian College, Chennai

5. P.S.G. College of Arts & Science, Coimbatore

6. Madras Christian College, Kancheepuram

7. Ayya Nadar Janaki Ammal College, Virudhnagar

8. P.S.G.R. Krishnammal College for Women, Coimbatore

9. Ethiraj College for Women, Chennai

10. Christ College (Autonomous), Thrissur etc.

Good Luck!!!