Mental and emotional Harassments by inlaws

Its been 12 years of my marriage. I was leaving with my in-laws. I got mentally harassed by my in laws and husband. I was trying to manage the thing and kept ignoring them. Then one day by father in law tried to molest (Hug me from backside) me. I did not realize it that day. I thought he is going for long trip so my be he is little nervous. When he came back he again did the same. I did not feel good so I said to him that may be your intentions are not bad but I don't like it. Please don't touch me. Then he did not do it for next one year and thing are goin as it was. Then one day he Kissed me on my birthday and I did not fell well and despite of my discussion with him he started hugging me again. I could not collect the courage to shout on a person I respect and consider more then my father despite of their bad behavior. I could not speak up. Then I visited my mother's home for Rakhi for few weeks. Then there after few weeks I could speak up to my mother about it and disclosed it to her and said I do not want to go back to that house again. Now I am leaving with my brother's family and bought property somewhere else. But my mother in law keep going to my mothers house and torturing her metally and emotionally