Indian Railways — Gate is broken

I'm travelling in train number 12181 in A1 coach which is 2nd AC Coach and as you can see in the picture attached, the gate is not closing properly, it is broken.
The cold breeze is coming directly inside it .As my seat is just near the door, it's horrible in this weather where temperature is around 4°.
I didn't pay this much amount so that I can't sleep properly and adverse my health.