Hello Samyuktha,

Here are some mat accepting colleges that accept composite score below 600 are.,

• MS Ramaiah Institute of Management, Bangalore
• ITM Business School, Navi Mumbai
• KIIT School of Management, Bhubaneswar
• AIMS Institutes, Bangalore
• Indian Institute of Management Ahmedabad

This are the some colleges ,for more college once visit the link given below

https://bschool.careers360.com/articles/top-b-schools-accepting-mat-scores-and-cutoffs

Hope this helps you...