Cleartrip — cancellation of air ticket on their own thereby destroying my programme / money

Address:

Flat No 110, Y R KEERTHI RESIDENCY, SINGASANDRA, BANGALORE, Bangalore, Karnataka, 560068

I booked air ticket to travel on 25.09.2019 by indigo flight 6e 3518 from bengaluru to pune. Booking was done on 13.09.2019 and ticket was confirmed.in fact i paid extra amount for window side seat.
But to my surprise i received communication on 25.09.2019 morning 7 am, just few hours left to start, as my ticket was cancelled.
I have neither requested for cancellation nor otp confirmation from my side.
But they are arguing that i requested for cancellation.
In fact due to cancellation from their side my programme disrupted and also caused financial loss to me.
In fact i struggled hard to get alternate arrangements for travel.
Company may be instructed reimburse full amount with penalty.
They should not make unfair practices pushing commuters in to problem.