Property distribution

I am Smt. Nayana staying at Nimapara, Puri - 752106. My husband passed away in the year of 2018. I have 6 children (5 sons, 1 duaghter). Out of 5 sons 1 is dead. One of my son who is OFS(Odisha Finance Service) Class-I officer and working from last 15 years in Nimapara itself. He forcibly made a big house for his own on land which is common for all of my sons. When rest of sons tried to get legalhire, he making some illegal activities on the process as he is a Govt. officer in the same field. I have attached the legalhire we applied with actual beneficial interest and also the document we got from Nimapara Tahsil in which some additional names are there. I am sure this suspicious activity is made by him. For which the land could not be distributed among all of my sons equally. To show Govt. recocods he also blocked my BPL card, Rshan Card and Bardhakya Bhatta. I am staying in my old broken house which my husband made near to his big house. I am not getting any medications though I have many old age deseases like BP, Diabatis etc. I am not getting food and shelter after my husband passed away. Me and rest of my sons are hopeless now. I know how I made him OFS. How many days I stayed hungry to educate him. I sold all my household things for him. I can not fight as I have no position, power and money. Please help us.