Property papers concern

5 years ago

hello... there is property(house) which is under the name of my mother elder sister(she is unmarried/divorced) and we are living with her from past 10 yrs...initially before building the house there was an agreement between my mom and my mom's elder sister saying that house will belong to my mom after her death and by this agreement we built the house by our own expenses and we are taking care of her but house registration was under her name as she was elder in home... now after so many years she is asking us to leave the home as house is on her name . we have some agreement papers and house registration paper with us as proof and now she is asking us to return those papers so that she can change the agreement but we are not giving those papers to her as its only proof left with us.... also she is blackmailing us that she will give complaint to police station if wont return the papers....so please let us know is it possible for her to give police complaint for papers...if yes then what we are suppose to do....