What to do if a brother is not sharing mother medical expenses

Dear Sir/Mam, My mother hospitalised and expired on 30-07-18. I am the younger son spent total medical expenses of Rs. 2,10,000 for my mother treatment (Rs. 1,30,000/- through my cashless insurance) but my Elder brother has not shared any amount and when I am asking to give half of the amount, he is saying that since my insurer has sanctioned "cashless claim" & without his acceptance I have taken mother to hospital, he is not willing to share any of mother medical expenses (I alone paid the premium amount). When I am trying to sell my house land property and recover his half amount, he is saying that I was not allowed to sell that land also since it was purchased by mother and father. My elder brother has taken my mother jewellery also. Kindly help me, whether I am having right to recover half of my mother medical expenses from my Elder brother or not ? We divided 20 years before when my father was alive and signed by 10 persons on a white paper agreement. Regards,