Indigo Airlines — Flight timing preponed without informing

Address: Kolkata, West Bengal, 700056

My flight was from kolkata (Ccu) to pune (Pnq) on 23rd april 2017 at 14:50 hrs and my pnr was gei4kn.
Its timing was preponed and changed to 12:55 hrs which was not informed to me. Neither any email nor any message was sent to my mail id or mobile number regarding the change in flight timing.
Then they just said sorry that it wad their technical fault and booked a connecting flight for me.
I had booked a direct flight which they because of their fault changed it to connecting flight via bangalore.
Because of the faults of indigo, my flight duration was extended from 2.5hrs to 8hrs. Indigo wasted my time and money