as my percetile is not so good...I am not going to get MMS thats why wanna go to PGDM

According your score you can apply the colleges like MET's Institute of Management, Mumbai, Indian Education Society's Management College & Research Centre, Mumbai, Lala Lajpatrai Institute of Management, Mumbai, Rizvi Institute of Management Studies & Research, Mumbai etc. You can also check MAH CET cutoff with the given below link.

MAH CET Cutoff

Good Luck!