Is a Will Required to Be Registered? Optional Registration under Section 18(e), Presentation at Any Time under Section 27, the Procedure in Sections 40 to 46, and What Registration Does and Does Not Prove

The short answer is no. A will is never compulsorily registrable. Section 17(1) applies in terms only to non-testamentary instruments, Section 18(e) makes a will one of the documents that may be registered, and Section 27 allows it to be presented at any time. The reason lies in the nature of a will: it is ambulatory, speaking only from the testator's death and revocable until then, so there is nothing for a public register to give notice of during his lifetime. Registration nonetheless has real advantages, and equally real limits, and the two are often confused.

Why registration is optional, the procedure, and the limits of what it proves

1. Why It Is Optional

Section 17(1) opens with non-testamentary instruments, and every clause in it is confined to them. A will is testamentary by definition.
Section 18(e) expressly lists wills among the documents of which registration is optional.
Section 27 provides that a will may at any time be presented for registration or deposited in the manner the Act provides. The four month rule in Section 23 does not touch it.
The rationale. A will creates no present interest. It may be revoked, altered or replaced any number of times, and only the last valid will speaks. Compelling registration would give the public record no reliable meaning.
Section 17(3) is different. An authority to adopt a son, not conferred by a will, must be registered. A testamentary authority to adopt contained in a will follows the will.

2. The Procedure

Who may present. Under Section 40, the testator himself, or after his death, the executor or any person claiming as executor or otherwise under the will.
The enquiry. Under Section 41, a will presented by the testator is registered in the ordinary way. Where it is presented after his death, the registering officer must be satisfied that the testator is dead, that the will was executed by him, and that the person presenting it is entitled to do so.
Where it is entered. In Book 3, the register of wills and authorities to adopt, under Section 51. Section 57(2) restricts inspection of Book 3 during the testator's lifetime, which preserves the confidentiality of a will that has not yet taken effect.
Deposit of wills. Sections 42 to 46 provide a separate facility. A testator, or his agent, may deposit a sealed cover containing his will with a Registrar, superscribed with his name and that of his agent. Section 44 allows him to withdraw it, and Section 45 provides for the cover to be opened after his death on application.
No time limit. Section 27 applies at every stage, so a will may be registered decades after execution, or after the testator's death.

3. What Registration Achieves

Advantage	Why it matters
A permanent public copy	The will is copied into Book 3, so a certified copy is available under Section 57 if the original is lost or destroyed
Evidence of the date and of the testator's appearance	The registering officer records the presentation and the admission of execution, which is difficult to attack later
A harder case for the challenger	Allegations of fabrication after death, or of a will concocted years later, are less easy to sustain
Deposit as an alternative	A testator who wants secrecy may deposit a sealed cover under Section 42 rather than register the will

4. What Registration Does Not Achieve

📖 H. Venkatachala Iyengar v. B. N. Thimmajamma, AIR 1959 SC 443

Facts: The genuineness of a will was in issue. The Court considered what a propounder must establish, and how a court should approach a will surrounded by suspicious circumstances.

Held: A will must be proved like any other document, but with the difference that the testator is not available to depose. The propounder must prove due execution and attestation, and where suspicious circumstances surround the will, such as a shaky signature, a feeble mind, unnatural dispositions, or the active part taken by the beneficiary in its execution, the propounder must remove those suspicions by clear and satisfactory evidence before the court accepts the will.

Ratio: The propounder of a will must prove execution and attestation and dispel any suspicious circumstances. Registration does not relieve him of that burden.

Registration is not proof of genuineness. It records that a document was presented and that execution was admitted; it says nothing about the testator's capacity or free will.
Attestation must still be proved in the manner the evidence law requires, by at least one attesting witness where one is alive and available, as Section 63 of the Indian Succession Act and the corresponding evidence provisions require.
A registered will may still be revoked by a later unregistered will, by a codicil, or by destruction with the intention of revoking it. Registration gives the earlier will no priority.
Probate may still be needed. Section 213 of the Indian Succession Act requires probate or letters of administration in the cases it covers, whether or not the will was registered.

5. The Position Stated Shortly

A will is never compulsorily registrable: Section 17(1) is confined to non-testamentary instruments.
Section 18(e) makes registration optional, and Section 27 allows presentation at any time.
Section 40 says who may present it, and Section 41 requires proof of death and execution where it is presented after the testator's death.
It is entered in Book 3, and Section 57(2) restricts inspection during the testator's lifetime.
Sections 42 to 46 allow a will to be deposited in a sealed cover instead.
Registration preserves the text and the date, but proves nothing about genuineness or capacity.
H. Venkatachala Iyengar: the propounder must prove execution and attestation and remove suspicious circumstances.
A registered will may be revoked by a later unregistered one, and probate may still be required.