Chief executive Tewolde Gebremariam outlines plans to position India as a global aviation hub while streamlining international operations.
The ruling party in Punjab alleges official vendetta, while the BJP questions public expenditure on the Chief Minister's European trip.
Passenger numbers at India's busiest aviation hub rose 5 per cent between April and September as domestic and international travel expanded.
The civil aviation ministry has demanded an explanation after three Italian passengers boarded a flight to Munich without clearing passport control.