Transfer of property

I am the only son to my parents and have three sisters, who are all married and settled. The house property which was in my father's name was transferred to my mother after fathers death. Now the my mother expired. The property in my mother name has to be transferred to my name.. My intention is to give some portion of property to my three sisters after the property is transferred to my name. Can this done by making a gift deed. Can this all be done in a simple way by furnishing death certificate to the muncipal authorities for khata transfer. I also have ancestral property in my mothers name which has to be transferred to my name now. I have requested revenue authorities for transfer of property by furnishing death certificate and family tree.My father had a sister who is no more but her children are there. Whether they are entitled to any share in the ancestral property legally. I am also having sisters married and settled. Are married sisters entitled to share in the ancestral property legally. I intend to transfer some land to my sister voluntarily as gift deed.