What marks did you score in your 12th? And MPC means science? 

So you want to pursue commerce?

Ifyou want to pursue commerce in future with maths as a subject, then you must go for B.com Honours or Economics Honours (if you had economics as an optional subject with science in 11th and 12th).

Course matters above the college so that should be your priority.

Secondly, my advise as being a commerce student myself, would be to go for a Govt. affiliated college instead of any private university if possible. Donot miss an opportunity where you are getting Delhi University as it the best for commerce stream. AS all this helps a lot in further post grduation courses and even in abroad.

All the best.