Landlord is harrasing my family

My parents nd 15 yr old brother moved in halduchaur (nainital) on rent in july'16. Since then owners wife was very rude and abusive. Many times they asked my parents to leave the property with an excuse that they have marriage but there was not. Finally we decided to move to some another property and informed owner that we will me moving on 10th nov'16 and you can take half month rent for nov month also he said he will come on 12th nov and hung up. When we finally started shifting they locked the property nd demanded for full month rent nd 3k extra as penalty also filed FIR against my parents and threatened them over phone that they will get my father arrested if we will not do this. His brother in law is police officer nd taking advatage of it. My father is heart patient nd mother is asthmatic nd they didn't allow to even take their medicines nd daily stuff. They had to buy new stuff such as utensils nd toiletries nd even new school shoes for my brother as he had his school next day. My family is in danger!!!!!! Please help