Leave it to india
to just take something that already exists and try to modify it and make it indian. ffs, if it was a swedish person he'd incorporate the nordic gods. It's just some sorry guy who teaches cryptography and finds that using a cultural bias that favors him is better than a cultural bias that favors americans.
A good point was made at https://subversivebytes.wordpress.com/2012/10/03/cryptographys-alice-and-bob-are-here-to-stay/ that if he wants to use indian mythology then he should come up with his own crypto algo and use impose his own cultural bias.