I recently had a DEL-MAA (evening flight) delayed over 4 hours. They refused to put anyone on any other carrier (because they never really gave the correct duration of delay...making no announcements). Flatly refused any compensation (they refused compensation to everyone right in the boarding area!).
I think they did provide some food. (I did not try it).

I think IT has become very unreliable....

In a separate incident I was flying MAA-BLR. The IT flight was getting delayed. I simply canceled at airport check-in counter (they did refund me the fare). And flew 9W.