Legal heirship to a property whose owner is deceased without will

There is a property which was bought by my father and registered in the joint name of my father and mother. I am their only child. My father also has a younger brother. Also after the untimely death of my father, I have changed the property to my mother's name and my name jointly in all municipality and village panchayat records. My query : 1. As this is not a inherited property, does my uncle have a share in this property? 2. Do we still need an NOC from him for sale of the said property. Religion : Hindu Brahmin