No, registration of a will is not mandatory in India. Under the Registration Act, 1908, registration of a will is optional. A person can make a valid will without registering it, provided it meets the legal requirements for execution.
A will should generally be made voluntarily by a person who is of sound mind and capable of understanding the nature and consequences of the document. For a will executed by a Hindu, the Hindu Succession Act, 1956 also recognizes testamentary succession.
Although registration is not compulsory, registering a will can provide certain practical advantages. It can help establish that the document was formally presented before the registering authority and may make it more difficult for someone to dispute its authenticity. However, registration does not by itself guarantee that a will cannot be challenged.
A will can also be changed or revoked during the testator's lifetime, subject to applicable law. Therefore, while registration is optional, it may be considered as an additional safeguard, especially where significant property or potential family disputes are involved.