Hello aspirant,
There are alot of colleges in India offering b.com.
All these colleges may be teaching in various languages like hindi, english, regional language.
I request you to kindly elaborate your answer.
Please mention the name of the college you are concerned for.
All the best.

Hi,

Majority of the colleges teach b.com in english generally as it is easier for everyone from different culures to understand. However, there are colleges that teach b.com in hindi if it is applicable from the university. So you can study your course in any medium as per your wish.

Dear Student,

This completely depends upon the college in which you are studying or seeking admission.