It was also the first time I flew alone with the kids (Mumbai-Udaipur). They were surprisingly well behaved. I was VERY impressed with Mumbai's domestic airport, especially with how kid-friendly it is! In this regard it beats most US airports hands-down. They had a play area for older kids and a nice and clean mother's room with very helpful staff. Here's a picture of Anu napping in the mother's room (since we had some time to kill at the gate).
More pictures from the trip coming soon :-)