Know the Rules of Co-operative Housing Society ?

Hello, I am a resident of Kalyan City, in Thane District, I am residing from 9 years in our Co-operative housing society and paying all the charges like maintenance,water, services & Sinking fund charges etc. on time to time. I want to know that if i wish to go to terrace (terrace is common for all not personal) for walking or meditation etc. than i have to ask for terrace key from secretary or committee members ? and most of the time they are asking me why you want to go in terrace & many time they refusing me or saying that we don't have key some body already taken & not gave us return or some times saying that it is not allow to go in terrace in night. In short every time ignoring or refusing or lying and some times advising me that you can even walk / roam on road under building. For this kind of behavior & issues I fight with secretary, and I went to society chairman and told them that i require my personal terrace key and i dont need your suggestions / permissions every time from any body. and also inform you that some our society oldest members have their duplicate keys & using themselves any time when they wish. Than our chairman told me its not allowed to give a key to anybody except committee members. some times its risky for us thatswhy we do not give in night and also told me that you can ask a key in day time when you wish to go. but in a day time i will be busy in office routine & works. Pls. Suggest me that i have rights, to have my personal key. Or If I have rights to have a key, than also they are not providing me than what should i can do ? Can i complain any where or refuse to pay society maintenance for not fulfill my society rights ? Or i can pay only water charges or municipal not to pay remaining society charges for not providing my rights. Pls. ADVISE THANKS IN ADVANCE