What's the procedure to lodge a for through district magistrate and how much it cost?

Government surveyor conducted a survey of our agricultural land and planted landmarks. Now, neighbouring land owners unearthed the landmark and ploughed our land. When we tried to plough our land, they obstructed the tractor. what are the options for us.

We are 9 siblings of the same Father-Mother. 7 daughters 2 sons. I'm the second daughter. During 1991, my mother pledged/sold our house title documents to a local money lender for Rs.30,000/-. Father died in 1976 & mother in 2012. One of my brother(60yrs) is staying, along with his family, for more than 42 years in the house that has been pledged and has made intermittent payments to the money lender by cash, total amount aggregating to more than Rs.6,00,000/- as of Jan 2012. The money lender visited my brother during 2015 and suggested that he settle a one time amount & take back the house titles. But since then, the money lender is not to be seen. We do not have his address. We tried to trace him(& his family members) but no success. The electricity bill to-date carries our mother's name. What is the legal remedy to get back our house title document & get the house registered to my brother ? The other 7 siblings & their children have no objection to register house title ownership to my brother.

Wanted clarification for the following My mother has 2 brothers one is elder and one is younger and her father passed away in 2002. Will she be able to claim her right to the properties. Because I have no proper understanding of that 2005 Hindu succession ACT. To be noted : all the properties are ancestral like not self acquired by her father and it's not divided among the brothers before 2005