Property Share Under Muslim Law

Hello sir/madam I m a Muslim by religion and from Andhra Pradesh . My mother has 3 houses (2houses purchased by my mother, 3rd house is ancestral property) We are 4 brothers. Long back my mother registered two houses (each house to one brother)to 2 of my brothers .One brother who got property already solded out that property. Another brother and me did not sign in that registration. My mother did registration with an oral agreement that the 3rd house will be given to other 2 brothers and that property will be divided by them. My mother passed away while living 3rd house. Now 2 brothers who already got property by registration demanding equal share in 3rd house. Please advise my options in this situation.