Transferring property after a grandmother's death involves submitting a death certificate and an affidavit from all legal heirs to the local revenue officer. If a legal heir has also passed away, their own heirs can take their place. Obtaining a death certificate for someone who died many years ago is usually possible through the Registrar of Births & Deaths, even if it requires a court order if records are unavailable. It's crucial to ensure the property mutation is updated in the revenue records to reflect the legal heirs.