Mental harassment by in laws

I am a working women. married for past two years. my in laws own two houses in lko but still they live in delhi with me and my husband. my mother in law interferes in everything ranging from food to clothes, maid, slippers, shoes, etc etc. now i have purchased a house with my husband but my in laws refuse to go back and my husband is not compelling them to go. father in law is retired pensioner. sister in law is also working. mother-in-law compares me and insults me in every work. she shouts and blabbers most of the time. speaking shits. i have a ten months old baby. she compares my baby with my sister in law who is 26 years old. she feeds her with her hands.. and if i am taking care of my baby she alleges me for not working and not helping. she has mental issue for cleaning everything many times. and she is not satisfied even if someone else does that for her. everytime she has to blame me or my parents for anything that has happened. she fights with father in law.. creating very negative atmosphere. my baby is unable to sleep, eat and his health is deteriorating. i want my in laws to go back to lko as they are fully capable of living on their own and no one is dependent upon either me or my husband. how can i legally proceed for this. there is no self respect living with her.