Hello

I am flying into Mumbai on Virgin (upper class), arriving at 11:40 AM, and need to book a separate ticket to Bangalore. How much layover time is needed?

On the way back, I have a 1:40 PM Virgin (Economy Plus) flight out of Mumbai. Is is insanity to try to fly out of Bangalore that morning? How long of a Mumbai layover would you recommend for the trip back?

Also, what is the best regional airline?

Advice would be much appreciated.

Thanks!