Fine for parking in association owned spaces

Hi, My situation - I live in south Bengaluru in an apartment. Apartment is managed by owner’s association although it is not registered. Recently they started charging fine for parking in association owned parking slots. Although I know that slot was not allotted as there are few flats are still unsold. This is a 6-7 years old property. I was not present when parking slot was allotted. Because I was not present they allotted me a uncovered parking. Since i can’t park my car there I started parking in an available nearby slot. Since that slot was not sold, association decided to take it under their control. I explained them the situation and asked for a month to put a shed for my parking slot but they refused and disconnected DG supply. My questions - 1. Is it legal to disconnect DG supply? 2. What legal options I have against the association? 3. What options I have against the builder who allocated me uncovered parking even after purchasing a covered car parking? 4. During the power cuts, my family is sleeping in utter discomfort, what options I have for this?