My composite score is 503 and percentile is 37.6 which college accept thi score?

Sana, I am assuming that this query is about the MAT Exam and the composite score you referred to is the MAT Composite score. Now, the percentage which you have secured in the MAT Feb exam can be calculated on the basis of your score as follows:--
(Your score or marks/Total Marks) *100 or
(503/800) * 100

which comes out to be equal to 62.875 percentage. Also, you need to understand that the chances of getting a call also depends on your category and graduation credentials.

Now, some of the colleges which you can try for and have some chances for selection based on previous years trends and your composite score and percentage secured are as follows:-


FORTUNE INSTITUTE OF INTERNATIONAL BUSINESS, DELHI


GURU NANAK INSTITUTE OF MANAGEMENT

STUDIES, MUMBAI


ALLIANCE UNIVERSITY, BANGALORE


JAIPURIA INSTITUTE OF MANAGEMENT, JAIPUR


IIHMR UNIVERSITY, JAIPUR


ITM BUSINESS SCHOOL, NAVI MUMBAI


ACCURATE INSTITUTE OF ADVANCED MANAGEMENT, GREATER NOIDA


ACCURATE INSTITUTE OF MANAGEMENT AND TECHNOLOGY, GREATER NOIDA


IFIM BUSINESS SCHOOL, BANGALORE


SRM BUSINESS SCHOOL, LUCKNOW


ANSAL UNIVERSITY, GURGAON