Next month, I'll be arriving on a domestic flight to MAA at 14:30, with an international flight out at 23:00, leaving me with around 10 hours to kill. This will be after spending a few days in Chennai on the way in, so I presume I'll already have done the obligatory sights by then, and if MAA's anything like most Indian airports it's not the kind of place you'd want to stick around in for 10 hours. So, a few questions for the local experts...

a) MAA apparently completed some renovations recently, can anybody make heads or tails of this? (It would actually be quite handy if my dom flight arrives at the int'l terminal!)
b) In either case, where can I stow my bags? (My airline flies only once a day and thus won't accept them until a few hours before the flight.)
c) Any places for a nice leisurely dinner in the vicinity?
d) Are any of the lounges at MAA int'l worth buying access to?
e) Any other ideas for what to do on a sweltering hot Sunday?

Thank ye muchly ^