Hello, 

CMAT is the exam cinducted by the national testing agency. CMAT score is valid for 1 year . As per the previous year cutoff marks.

Birla inatituin of  technology 75% is Needed to get seat, Dr. D. Y. Patil vidyapeeth 75% is needed, jaipurai institute of Management 82% is needed, Asia Pacific institute of managManag 85% is needed, XISS Ranchi institute 95% is needed and some other institutes are there. 

I'm going to provide you the link of our careers 360 article below you can refer that page

https://bschool.careers360.com/article/cmat

In the above link you can get the clear information about the cutoff marks for institutes and selection process etc.

All the best ..

THANK YOU..