Yes the present regulations permit equity participation in Indian carriers to varying degrees based on wether it's a pax , cargo or chopper operation.But the part ownership of foreign carriers is still not permitted.The last attempt of a foreign airline investment in India was with the Indian governement blessings when SIA tried for 26% stake in Air India.That didn't happen for various reasons.However this time around if they do permit foreign airline ownership , that would almost certainly be the end of Air India as a government airline at least...