Owner of the property is dead and register the case in consumer case but it is still pending status

I have purchase a House from Mr Siddharth Gupta in the year 2018 of Rs 35 Lakh and paid 19 Lakh to him and he died on Dec 2018. Because of his death i am unable to register the property in government records. Afterwards i approach his brother but he is also unable to help as he is not the legal heir of the said property so i approach his wife and message him on messanger but i did not get any reply. So after paying such a huge amount i am still deprived from my property after a such a long time.I loadge a compalint in Consumer court but the case is in still pending status