Some of the Airlines flying into India:
Air India
Indian Airlines
Air France -- via Paris
Alitalia -- via Rome
British Airways -- via London
KLM -- via Amsterdam
Lufthansa -- via Frankfurt
Swiss Air -- via Zurich
American Airlines -- via European Gateways
Continental -- via European Gateways
Delta -- via European Gateways
Northwest Airlines -- via European Gateways
Cathay Pacific -- via Hong Kong
Eva Air -- via Taipei
Malaysian Airlines -- via Kula Lumpur
Nippon Airways -- via Tokyo
Singapore Airlines -- via Singapore
Emirates -- via Dubai
The Domestic Airlines are :
Indian Airlines
Jet Airways
Air Sahara