There is no rail pass as far as I know but you will have to book your train in advance. Since there will be five of you you can travel first class or 2-Tier AC. Flights are also cheap. First decide what kinda holiday you want. For eg: you wanna laze around beaches or you wanna do the hills or the jungle camping kinda holiday. Believe me in India you have all the choices.

"Ali Baba and 40 thieves" are now "Ali Baba and 30 thieves" ; 10 were laid off.