Hii Ashwin!
There are many courses where you can apply after class 12th in commerce stream, in your subject of interest. Some of the B.com colleges in Delhi are given i. The link provided below.
https://university.careers360.com/articles/top-commerce-colleges-in-delhi-university-2014/amp
Some more good colleges across India are -
* Christ University, Bengaluru
* Mount Carmel college, Bengaluru
* Symbiosis college of arts and college, pune
* Narsi monjee college of commerce and economics, Mumbai
Etc.,
Hope this helps.
Good luck!