Hello Maithili, CMAT(Common Management Admission Test) is conducted by national testing agency, the deadline for the registration is extended from November 30,2019 to December 10,2019. You can use this opportunity.
You can visit https://bschool.careers360.com/articles/cmat-registration for other useful information about CMAT.
Hope this helps.
Know your Admission Chances for Colleges Accepting CMAT score