I've received only one call and that is from IIM Jammu. I've 2.5 years of experience current package is around 8. Can someone guide me that should I consider IIM Jammu for MBA or not?

A BIG NO !! continue with your job its already satisfying CTC so please try again is what atleast I'll suggest or aim for JBIMS in CET or upcoming papers as per your interest of domain.