Air India — ticket cancelled due to overbooking and very poor, worst customer

I did not get a seat on 14 apr 18 at 2 pm from delhi to london, due to over booked flight. This means air india is selling tickets which are sold already. This is fraud. I intend to take this to the press.
I requested for earlier flight but i was booked for 1400 hrs on the 15.04.18 instead of 2.45 am on the same day.
I speak to someone at customer service who confirms i am booked for 2.45 am flight. However, when i come to airport to check because i no longer trust ai. To my expected surprise, i am told that i am booked for 1400 hrs flight. On top of that, staff are not helpful and sympathetic as in any other airline. My first flight to india, worst ever experience. I am a victim here and request for an upgrade as compensation. The departments lack communication, customer service
I shall be updating experience on facebook and create awareness and disgraced.

Mr i seeborun