A bachelors degree from any recognised university is considered as the basic eligibility criteria. However the admission is based on the marks scored in NMAT/GMAT followed by the interview. Admission to some courses Integrated MBA (family business) is based on merit. So please visit their official website to get details of the couse you prefer.
narsee monji institute of management studies located in mumbai is deemed university. admission for mba courses is done on the basis of NMAT exam. nmat by gmac is a popular entrance test as basis on its scores NMIMS mumbai and other 20 management college provides admission for mba courses.
you may follow the below link to know more about nmat.