Hello Aspirant,

I hope you are doing well.

Here, I am comparing GMAT and NMAT:

GMAT is accepted and recognized by more than 2,100 universities in 144 countries. NMAT is only accepted  for applications to B School in India. Therefore, if you are aiming for an overseas B school for an MBA or similar program, GMAT is your best bet. GMAT or NMAT, any exam you take is always beneficial. You can choose from both depending on your needs and  the place of business  you want to participate in. However,  study planning and consistent exam preparation are key to  good results and  admission to the business school of your choice.

I hope this helps

Thank you.

All the best!!