My grandfather purchased land of 20 acres with his brother in-law in 1911,and in 1912 he mortgages the property adding his brother name,In 1921 he partitioned the land with his brother in law, equally each 10 acres,he died intestate,he has also left some other properties, he died intestate, other properties were divided between his sons,the remaining property is one which he purchased in 1911,His brother's heir are now claiming that they have equal right in the property, kindly reply