If I got a call from NMIMS Mumbai but could not clear the GDPI, do I still have a chance to join NMIMS Bangalore or Hyderabad?

Generally, NMIMS Mumbai has a higher cut-off score than other NMIMS branches i.e., Bangalore and Hyderabad. NMAT score of 245 must have helped you get a call for an interview from NMIMS Mumbai. 

Even if you could not convert NMIMS Mumbai, if you would have opted for Bangalore and Hyderabad then there is a chance to get a convert from them as well. Keep track of the waitlist movement. A shorter waitlist will ensure a seat in these B-schools. And Also get in touch with seniors and alumni of the college to get an idea of the waitlist movement.