Jet Airways — Didn't allow me to board the flight and their policy to deal with passengers is so rude

Address:

Pune, Maharashtra

I am a law student. My flight was on 11th may Pune to Delhi and time was 3:30 PM. I reached airport at 2:40 and even there was a last announcement for passengers when i was standing at boarding pass counter. Right at that time air hostess of jet airways said that doors has been closed. I did not understand why she said and how can be doors closed at same moment. when they are doing their last announcement there must be some time to board the flight. This kind of behavior with a passenger is not acceptable at any cost. This was the first time i booked jet airways ticket now i am never gone book ticket of this useless fly fairs. And there policy to deal with a passenger is also very rude. If there will no reply and action of my complaint i am really gone sue jet airways.