I'm arriving in Bangalore (BLR) airport at 130am... Is there a Lufthansa/Star Alliance Gold lounge for paid "Business Class" traveler upon "arriving"? or is there a lounge/temporary hotel inside the airport?

I figure I might do this instead of booking hotel since my 1st meeting in Bangalore starts at 8am and by the time I get to the hotel, it will be around 3am...

Also - when I leave BLR airport, the outbound flight is at 330am. What's the best option on the outbound?

Thx!