The flight was a 21:20 flight on a Sunday from BOM-HYD. 6E 234. The flight landed late in BOM but no staff bothered to inform any passengers why the boarding had not started even at 21:20. After people panicked and started rushing around, someone informed that the flight was delayed. No ETA was given. Then suddenly boarding gate was changed . So everyone rushed to the new gate . All this while, half an hour passed by. The flight landed in BOM about 45 min late and we finally boarded one hour late. Then to make things worse, they had a headcount mismatch. So we were made to sit in the stuffy aircraft for another HOUR. With no food or water. Then they claimed that the sequence was delayed by ATC. Waited endlessly in the stuffy aircraft. No food or water. My child had fever, and we were supposed to reach HYD by 22:50. Yet at 23:20 we were still sitting in Mumbai inside a sealed aircraft with the staff not telling us anything and no food /water. Everyone was feeling trapped, hungry people asked for the food service to begin. Staff claimed there was not enough food for everyone and that if we asked for food/ water, the flight would be delayed for another 4-5 hours! How can you tell hungry and claustrophobic passengers who have sat in your aircraft for more than an hour that there is no food Finally the plane took off and we reached HYD at 1 am the next day! A Monday, when people have to go to work after this terrible ordeal. The Pilot or Indigo staff did not do anything to make the passengers comfortable nor were we given any information in time.