City & Industrial Development Corporation [CIDCO] — Construction of buildings

Address:

CBD BELAPUR

Hello,
I stay in Koparkhairane it's in Navimumbai, Maharashtra. I live in a co-operative housing society regulated and constructed by CIDCO. I as a civilian have been paying maintenance charges and parking charges and all the charges that are billed to me monthly from more than a decade.
The condition of the society/building i stay in has become so weak that the slab parts are falling of. Earlier, 2 weeks before a part of slab fell on my bike. My bike was in the parking facility of the society. I was at my home when I heard a sudden boom of something falling. When I rushed outside, i saw that a part of slab from 2nd floor had fallen on my bike. Luckily, no casualties happened. But, my bike was severely damaged. The place where I had parked my bike was on a regular path where kids play, people too walk from over there. What would have happened if it would have been a human?? Who should we have held responsible??
Matter of fact, If this would have been a private society the builder would have been the person to pay the losses. But this been a authority (CIDCO) which comes under government, whom do i ask to repay the damage or atleast repair it?
I still wrote a letter to the society committee but no one replied. No one was even bothered to discuss on the topic. I went again and explained them that the damage is too much. It will cost me 4-5k. But no one's ready to pay or atleast help me get my bike repaired. They blame CIDCO for this faulty construction. Whom do i need to connect?? I want a redressal. I had done nothing wrong. Why do i have to pay for someone else's mistake?
This is my contact no: [protected]. If this really reaches anyone who might really help me, please do connect me. Also, if anyone from cidco or some legal entity wants proof. I will share the details of my society and also many CIDCO constructions which are rotting and slabs are collapsing but still people are forced to live as it is there home and they have no where else to go. Is this what we pay taxes for??