This post focuses on what goes wrong. For the full picture of what a valid Indian will requires — format, witnesses, registration, executors — read our companion piece: 'How NRIs Can Make a Valid Will for Their Indian Assets'.
Mistake 1: Choosing the wrong witnesses — or the wrong number
Indian succession law (the Indian Succession Act, 1925, which governs wills for most NRIs) requires two witnesses who must be present when the testator signs. That sounds simple, but this single requirement is responsible for a disproportionate share of challenged wills. Here is where people go wrong:
- Only one witness. The Act says two; one is fatal.
- A beneficiary acts as a witness. A witness who is also a beneficiary — or the spouse of a beneficiary — does not invalidate the whole will, but that witness forfeits their legacy under it. So if your son witnesses your will and he is named in it, he loses his gift. The will stands; his inheritance does not.
- The witnesses sign separately, not in the testator's presence. Both witnesses must be present when the testator signs, and each must sign in the testator's presence. Witnesses signing the document at different times — even on the same day — creates a vulnerability.
- A witness who is a minor. Witnesses must be competent adults of sound mind. A family member who happens to be under 18 at the time of signing cannot be a witness.
- No attestation clause. While not strictly mandatory, the absence of wording confirming that witnesses signed in the testator's presence gives challengers an easy foothold.
Choose two adult witnesses who are not beneficiaries and not married to beneficiaries. Gather all three of you in the same room, have the testator sign first, and then have both witnesses sign — with an attestation clause confirming they did so in each other's presence and in the testator's presence.
Mistake 2: Vague or ambiguous wording that leaves assets in dispute
Courts cannot rewrite a will. If the language is ambiguous, probate judges must interpret the words literally — and when two family members each have a plausible reading, the result is litigation, delay, and legal fees. Classic examples of ambiguous wording NRIs use:
- "My flat in Bangalore" — without specifying the survey number, registration details, or full address. If the testator owned two Bangalore flats, or one flat and one apartment in a shared family property, the beneficiary's claim immediately collides with someone else's.
- "Equally divided among my children" — without naming the children. Children born later, step-children, or adopted children may or may not be included under a court's interpretation.
- "I leave my savings to my wife" — without specifying which accounts, which banks, and whether fixed deposits and post office schemes are included.
- "The rest of my estate" without a clear residuary clause. If a specific asset is sold before death and the will doesn't address what happens to the proceeds, that portion of the estate may fall into intestacy.
Name every asset with full legal particulars — property by survey number and registration details, bank accounts by account number and branch, shares by demat account number. Name every beneficiary by full legal name and relationship. Include a residuary clause gifting everything not specifically bequeathed to a named person.
Mistake 3: Conflicting wills signed in different countries
An NRI in the US who writes an American will covering worldwide assets, and later signs an Indian will covering Indian assets, may unintentionally revoke the first with the second — or create a contradiction that triggers probate disputes in two jurisdictions simultaneously. The problem compounds when:
- The later will uses sweeping language like "I revoke all prior wills" — which inadvertently cancels the foreign will even if that was not the intention.
- Both wills claim to govern the same asset (say, an Indian property mentioned in the American will).
- The two wills appoint different executors for the same estate, creating competing authority.
Courts in each country will apply their own probate rules and conflict-of-law principles, which vary. The result can be that one will is recognised in India and a different document is recognised abroad — and neither correctly reflects what the testator actually intended.
If you have assets in multiple countries, work with lawyers in each jurisdiction to draft coordinated, jurisdiction-specific wills. Each will should clearly state that it covers only assets in that country and that it does not revoke any will dealing with assets elsewhere. Keep copies of all wills together with the executor so there is no ambiguity about what exists.
Mistake 4: Unsigned or partially signed pages
A will does not legally require every page to be signed — the Act mandates a signature at the end of the document, and witness attestation at or after that signature. But in practice, a multi-page will where only the last page is signed is an easy target. Challengers raise the argument that earlier pages were swapped, inserted, or tampered with after signing. Even if the allegation is false, you are now in litigation proving the negative.
Initials on every page — by the testator and both witnesses — are not legally required, but they provide a factual record that every page was reviewed and present at the time of execution. The cost is negligible; the protection is real.
Initial every page of the will — testator and both witnesses — and sign the final page in full. Number every page clearly ("Page 2 of 8"). Keep the original in one place; do not staple, bind, or attach documents that were not part of the original execution.
Mistake 5: No capacity or sound-mind evidence — and then a challenge
Testamentary capacity — the legal term for being of sound mind when you make the will — is a common ground for challenge, particularly when the testator was elderly or ill at the time of signing. The challenger does not need to prove incapacity beyond doubt; they need only raise a genuine dispute. If the will was signed during a hospitalisation, after a dementia diagnosis, or under circumstances where the testator's judgment was later questioned, that is often enough to trigger a court enquiry.
What the law actually requires for testamentary capacity is not a high bar — the testator must understand the nature of a will, the extent of their assets, and the identity of the people they are benefiting. But if none of that is documented, challengers can allege otherwise.
If there is any possibility the testator's capacity could later be questioned — age, illness, recent surgery — have a doctor certify capacity contemporaneously (around the time the will is signed). Some estate lawyers include a brief capacity recital in the will itself. Registration of the will at the Sub-Registrar's office also helps: the registrar's record of the testator appearing and making statements provides independent contemporary evidence.
Mistake 6: Undue influence — a claim that is hard to defend without records
Undue influence — a claim that the testator was pressured or manipulated into making the will — is the other major challenge ground. It is particularly common in NRI contexts, where a testator in India may have depended heavily on one local family member for day-to-day support, creating a situation where other family members argue that the local caregiver "engineered" a favorable will.
The challenge is harder to defend when: the will was drafted by a lawyer chosen by a beneficiary; the beneficiary was present throughout the signing process; the testator had no independent advice; or the will makes a dramatic, unexplained departure from an earlier position (leaving everything to a new person who recently entered the testator's life).
Have the will drafted by a lawyer chosen independently by the testator — not by any beneficiary. The testator should meet the lawyer alone at least once. Ensure the witnesses are not connected to any beneficiary. If the will makes a departure from prior intentions, include a brief recital explaining why. These records are the most effective protection against an undue influence claim.
Mistake 7: Not updating the will after major life events
A will made in 2010 may be legally valid in 2026 but practically catastrophic. Assets named in it may have been sold, inherited, or given away. Beneficiaries may have predeceased the testator. New assets — property, investments, digital accounts — may have accumulated with no mention in the will. The will is not invalid for being outdated, but its effect may be nothing like what the testator intended.
- A beneficiary predeceased the testator with no substitute named: that gift lapses and falls into the residuary estate, or into intestacy if there is no residuary clause.
- A property sold and replaced with another: the original bequest fails unless the will includes language following the proceeds.
- Marriage or divorce after the will is signed: in some personal law situations, a later marriage can affect an existing will's validity or distribution — important to verify with a lawyer.
- Children or grandchildren born after the will was made, not mentioned and potentially entitled to a share under personal law.
Treat the will as a living document that needs a review whenever a major life event occurs — sale or purchase of property, birth, marriage, divorce, the death of a named beneficiary. A codicil (a formal amendment to the existing will, properly witnessed) can address changes without rewriting the whole document. A full review every three to five years is good practice regardless of major events.
How registration protects against most of these challenges
Registration of a will at the Sub-Registrar's office is not mandatory under Indian law, but it neutralises several of the challenges above in one step. A registered will creates a public record of its existence and content as of the registration date. The Sub-Registrar's record confirms that the testator appeared, that the document exists, and the date on which it was presented — making tampering, insertion of new pages, and backdating much harder to allege. Undue influence and capacity challenges still arise, but the registration record provides contemporaneous independent evidence that cuts against most of them.
For NRIs, registration is particularly practical because the will can be registered in India through a properly authorised Power of Attorney holder, or in person during a visit. The registration fee is nominal. The protection it provides — reducing probate disputes and giving executors a clean, unchallengeable document — is disproportionately large relative to the effort.
| Challenge ground | Does registration help? | Best additional protection |
|---|---|---|
| Wrong witnesses | No — registration confirms the document, not compliance | Choose non-beneficiary adult witnesses; use attestation clause |
| Vague wording | No — wording is fixed at the time of drafting | Draft with a lawyer; name every asset with full particulars |
| Conflicting wills | Partially — creates a date record for the Indian will | Coordinate jurisdiction-specific wills with lawyers in each country |
| Unsigned pages | Yes — the registrar records the document as presented | Initial every page at signing regardless |
| Capacity challenge | Yes — testator appears before registrar contemporaneously | Doctor's certificate if health is in question |
| Undue influence | Partially — testator makes statements before an officer | Independent lawyer; testator meets lawyer alone |
| Outdated will | No — registration records the will as it was | Regular reviews; codicil for major changes |
Frequently asked questions
Can a beneficiary act as a witness to an Indian will?
They can — the will is not invalid — but the beneficiary-witness forfeits their legacy under the will. Their gift lapses as if they predeceased the testator. Spouses of beneficiaries are in the same position. Always choose witnesses who have nothing to gain from the will.
Does a will need to be signed on every page in India?
Only the final page signature is strictly required by law, along with witness attestation. However, initialling every page — by the testator and both witnesses — is strongly recommended to shut down any allegation that pages were added or swapped after execution.
My US will says 'I revoke all prior wills'. Does that cancel my Indian will?
Potentially yes, depending on the conflict-of-laws rules applied. A sweeping revocation clause in a later will can inadvertently revoke an earlier will even in a different jurisdiction. Always draft jurisdiction-specific wills with limiting language such as 'this will applies only to assets situated in [country]' and without a blanket revocation clause.
How do I challenge a will in India on grounds of undue influence?
The challenger files a caveat in the probate proceedings, setting out the grounds. The court then requires the propounder (typically the executor) to prove due execution, the testator's capacity, and the absence of undue influence. The evidentiary burden shifts once a genuine dispute is raised. The process can take years — which is why preventing the grounds is far better than defending the claim.
Is an unregistered will valid in India?
Yes — registration is optional, not mandatory, under Indian law. An unregistered, properly executed will is legally valid. Registration simply provides stronger contemporaneous evidence and makes probate proceedings smoother, which is why it is widely recommended even though it is not compulsory.
How often should an NRI update their will?
Review whenever a major life event occurs — purchase or sale of property, birth or death of a beneficiary, marriage, divorce, or a significant change in assets. A full review every three to five years regardless of specific events is sound practice. Use a codicil for smaller amendments; a fresh will for substantial changes.
What happens if a named beneficiary dies before the testator and there is no substitute?
The gift lapses. Depending on the will's wording, it either falls into the residuary estate (if there is a residuary clause) or — in the absence of one — may pass by intestacy rules for that portion of the estate. Naming substitute beneficiaries for each gift and including a strong residuary clause prevents this.
- Two adult, non-beneficiary witnesses who sign in the testator's presence are non-negotiable — one witness or a beneficiary-witness is a critical flaw.
- Vague asset descriptions create competing claims — name every property, account, and asset with full legal particulars.
- A later will with a blanket revocation clause can cancel an earlier foreign will — coordinate jurisdiction-specific wills carefully.
- Initialling every page and registering the will substantially reduces the risk of tampering and capacity challenges.
- Undue influence claims are hardest to defend when a beneficiary chose the lawyer and was present throughout — independent legal advice for the testator is the best shield.
- Review the will after every major life event and at least every three to five years to stop outdated provisions from producing unintended results.
This article is for general information only and reflects rules current as of 2026. It is not legal, tax, or financial advice — rules, rates and procedures can change, so please confirm the current position with a qualified professional before acting.