how to transfer the name in a property after the death of a person

The property is registered in my grandfather's name but he is no more now. Being is legal heir I have a Will which he favored in my name. I have a legal heir certificate with me. NOC signed by my father and uncle in my favor. So is there any document missing? Can anyone suggest me the procedure, money required in the process and how much time will it take? And consultancy fee?