Senior Citizen Harassment

Hello..my mother stays in Kanpur..I m her daughter..I have 2 brothers..my elder brother expired 7 years back..my younger brother stays with my mother..n he is unemployed..my father expired 10years back..before tht my younger brother used to help a bit in my father's business..n after his death..my elder brother supported my mother n younger brother financially.. After my brother's death..I have been supporting my mother financially..my brother doesn't want to work..just sit and get money..he thinks that I should support his family financially..he harasses my mother..wants her to die..he has also forced her to give the bunglow to him..so tht he can get the bunglow which my Father made with his earnings.. currently the bunglow is on my fathers name..she has been maintaining it as he does not earn anything..my brother being extremely hot headed even tried to physically abuse my Father when he was bed ridden n also my mother..he has also mortgaged my mothers ornaments..for money to get a job..but all in vain..his wife mentally tortures my mother for money..doesnt help her out if she has a problem..this is increasing day by day..she has also tried to slap my mother..my mother has high BP..n has got a hip bone replacement done..so she can't do much work.. I tried to intervene..but they told me to mind my business.. My mother being old..can't do much..her silence encourages them further..she thinks it might happen that they try to do harm to her.. I need to ask u..is there any law for senior citizens..wherein they can get a complaint lodged with the police..tht her son and his wife might try to do harm to her..? Please help..thank u..