Hi Soumya!!

Best colleges for Bcom in India are the following  - 

1. Op Jindal Global School Sonipat

2. Delhi University if if you happen to get more than 90% in your best four subjects you will be a very good choice for you

3. Amity University

4. Manipal University

5. You can also go for Mumbai University

6. Saint Xaviers College

7. Hindu college

8. Symbiosis College

9. Christ University Bangalore. It is the top college of India for Bcom but the admission process for this college is a bit difficult as as you have to clear and entrance test and after that interview and then you will be allotted a a seat in the college combining your performance in the entrance test personal interview and your 12th percentage. If  you want to try I for this college it would be a great opportunity otherwise I would suggest you to try in Delhi University.

hope it helps you!!

all the best!!