Delhi Development Authority [DDA] — Parking issues in lane besides Brahmakumaris Ashram A block Bunkar colony

Hello sir,
It has become very character for car owners at A block Bunkar colony, specially in lane besides Brahmakumaris Ashram to reserve their car parking by parking their 2 wheelers whole day. Some have built chains & barriers. This should be illegal. In DDA colonies like bunkar, car parking areas should be utilized on first come first park basis. People who protest against this have their cars scratched repeatedly and are forced to park their cars outside gate on main road, where car thefts happen often. RWA also don't seem to be interested in dealing with these things. I am myself have been victim of the same, and have lost a car to theft after being forced to park outside on main road.
Kindly take action against this kind of hooliganism.