1. Your mother has to get her name mutated in the revenue records of the municipal/corporation office.
2. Your mother has to obtain prescribed application form for transfer of property in her name, by producing copies of your father's WILL, Death Certificate, Genealogical Tree, Latest Tax Paid Certificate, etc., and submit the filled-in application to the jurisdictional Municipal/Corporation/Bruhat Nagara Palike, as the case may be, alongwith prescribed fee for the same.
3. After 15 days', the revenue officials inform your mother regarding the action taken on her application, for transfer of the property from your deceased father's name to your mother's name in the revenue records. By this way your mother gets title to the property in her name.