1.How to transfer the property in my name
Your brother in law can execute a registered gift deed in your favor with regard to the share of property that belonged to him as well as to that of his deceased wife as her legal heir. Whether there are any children to your sister, if there are any, the children have to give their consent for this transfer provided they are major by age.
2.What is the procedure for the same
Execution of registered gift deed and getting it registered before the jurisdictional registrar' office.
3.Do i need to pay registration fees again.
Yes, the registration fee need to be paid.