I am from Punjab. My grandfather had given a building on rent to different parties for running shops some 40-50 yrs ago on a rent of 40-100 rs per shop. These tenants have npt paid rent for last 15 years or so and now i've come to know that one of the tenants on those shops has grabbed the other area that does not even come under his tenancy and he has even locked the common passage and blocked our entry to the building. The local police is not supportive. How can i get my portion of the property back and can i evict these tenants and on what grounds?
Please advice at the earliest I am in dire need of help