Hey supreem!  First of all many congratulations , as I could sense your confidence of your hardwork.

My honest suggestion for the best college in India is Sri Ram College Of commerce (SRCC ) in Delhi. One of top college for b. Com and has high cutoff ranking. Having expertise faculty and good educational environment. 

But if you want to go for professional courses as well with your b. Come then you should go for another college because SRCC has high discipline in studies and demand full attention, which is difficult for the student to attend both, classes in SRCC and professional course .

Though there are some another best colleges for b. Com -

Goenka college of commerce and business Administration 

Kolkata, west Bengal

St. College of commerce 

Bengaluru, karnataka

Madras Christian College

Chennai, Tamil nadu

Mount Carmel College

Bengaluru, karnataka

Hindu College

Delhi

Narsee Monjee College of Commerce and Economics 

Mumbai, Maharastra

St. Xavier's  College

kolkata 

The above are the some best college for b. Com that provide students best knowledge and help in developing skills in the field  of business, commerce and accounts .

My best wishes for your career !