Hello!

This May I've got a fairly long transfer from BA (arrival into DEL T3 at 23.30) to Air India (departure to IXL, so domestic flight, out of T3 at 6.45AM the following day). My plan is to arrive, go through immigration, then turn at the appropriate turn as per the wiki up top and go in the domestic departures area. Since it's just a few hours I reckon there's no point in faffing about with a hotel. I've never been to Delhi, so here are 2 questions:

1. is the domestic side of T3 barebones / not suitable for a lengthy stay?
2. is there a lounge (maybe with showers) I can access for a fee?

thanks!