(Guest)
1. Its not advisable to take possession without getting OC, its very necessary document which buyer should get before moving in the apartment,
Despite paying all the money if the builder is not giving OC, you have remedy under RERA
2. Maintenance charge cannot be asked unless there is a committee where all the buyers are member,
It seems like your builder have shortage of money and thatswhy he is not able to complete the whole project and get OC from the appropriate authority leading to that he is asking for maintenance money to get some funds under false pretense, yes that illegal.
for detail guidance you can contact me, thanks
Satyam
satyammishra181@gmail.com