I took the same flight last month. I flew out of chicago-AMS-Mumbai, the behaviour of crew member in AMS to Mumbai is totally opposite of what we experienced during chicago to AMS. The crew member were rude, not polite, non cooperative to us.
I faced this kind of the thing many atime when we returned home or take western airline in asian destination.
Same time I also observed that many a times our people also does not behave properly and indescipline does not follow safety instruction.