1. You shall have to apply for and obtain grant of probate from the Court to claim the title of the property willed by your grandmother to you.
2. Unless there is no need to obtain probate of the will under specific rule for the area where the property is situated like Delhi, all wills are required to be probated by the Court where notice of probate application shall be sent by the Court to all the legal heirs allowing them to contest the probate application, if they so wish.
3. If there is no contestant of the application for probate of the will, the Court will grant it and the said will will be considered as legal with your name as T.A. Deepa.
4. Without probate, a will has no value more than a scrap paper despite the fact that rent is being collected by the beneficiary of the will.
5. If you have no contestant of the will, get an affidavit notarised before a first class Judicial Magistrate duly affirming that T.A. Deepa and Deepa Ram are the same person.