• Does adopted son or his children have right over the property

My father was an adopted son of Mr.krishnarao. He grew up along with Mr Krishnarao's other
two biological childrens Mr. X and Mr. Rangarao. 

Mr. X died at the young age. 
Mr Rangarao married twice. His first wife died without any childrens. He had a child from 
his second wife Sundramma. However the child died at young age. Mr.Rangaro passed way few 
years ago. Very recently his second wife sundramma also passed away. 

Since there are no regular heir to the property. Does my father [he is no more] or me and my siblings have
any right to the property of Mr.Krishnarao/Mr.Rangarao/Sundramma.