Destroyed co-operative housing society wall compound and gate what type of action should I take?

I reside in a housing co-operative society registered by kdmc in 1991.since I am staying here. Opposite to society wall compound a new society construction started in mid of 2010. In 2013 construction completed of his society. HE CONSTRUCTED HIS SOCIETY ON FULLY ILLEGAL BASIS, SOCIETY IS NOT REGISTERED BY KDMC. The owner of the opposite society destroyed our society wall compound & gate and started parking his two wheelers of his own society members keeping terrace shed, banner etc in our society compound space . We lodge police complaint on him even several times we inform municipality in a written statement but municipality didn't took a single action on him. On the above matter I just want to know, what type of punishment, penalty or destroying society wall compound, gate and using our society space as a parking. what type of justice we would get by court law? please specify. Only my last request is please share your thoughts on the above matter. And what measures or the way should I use in this matter. Thankyou