Air India — boarding pass issue

I have come 1 hr before for my domestic flight in hyd airport but air india boarding person told me that they closed the boarding and he cannot open for me but as per the rules he cannot reject like that and he was not at all listening to what i am saying. He was talking with one lady continuously.
Some how i rescheduled it by paying extra money and my flight is at 6:10 am next day and it has been delayed to 12:30 pm, no one has informed me and i was sitting in the airport from 4:00 am.
See how these stupid poeple are wasting poeple's time and money. This is the worst airline till now and poeple working there are also useless. They don't listen what passengers are saying also.