Jet airways is good. Routes are depend on base mostly 45 min to 1.30. I have worked with Sigmar in India 2005 2006 and they are OK. Most of the things you have to do on your own. Money for housing is enough if you are not based in Mumbai or Delhi.
So good luck in India. I was there for 4 years 3 months and 3 days and most of the time was OK. Maybe I will join you in Jet Airways.