How to fill a health insurance proposal form without wrecking your claim

Declare every condition, consultation and prescription from the insurer's look-back window, even ones you consider trivial or long resolved. A declared condition usually means a waiting period or a loading you can see. An undeclared one gives the insurer grounds to decline a claim years later, when you need it.

Almost every rejected health claim in India traces back to the same document, filled in years earlier in about four minutes: the proposal form.

It does not feel like a legal document. It is one. The policy wording says so directly — under the disclosure of information norm, the policy is void and the premium forfeited in the event of misrepresentation, mis-description or non-disclosure of any material fact. Not the claim voided. The policy.

The bar is lower than people think

Most people assume “pre-existing condition” means something serious that was diagnosed and treated. The definition is considerably wider than that. A condition counts as pre-existing if, within the insurer’s look-back window — commonly 36 months — you were either diagnosed with it, or received medical advice for it.

And medical advice is defined as any consultation or advice from a registered practitioner, including the issuance of any prescription or follow-up prescription.

Read those two together and the practical test becomes: did you speak to a doctor about it, or get a prescription for it? If yes, it is declarable. No diagnosis required. No treatment required. No hospital visit required.

That sweeps in a great deal that people genuinely do not think of as medical history:

  • The blood-pressure tablets your GP started you on and you have taken ever since
  • A consultation about recurring headaches that never led anywhere
  • A repeat prescription you collect without thinking about it
  • Thyroid medication that has kept everything normal for a decade
  • A back problem you saw a physiotherapist about two years ago

None of those feels like an illness. All of them are declarable.

What declaring actually costs you

This is the part that gets the incentive backwards. People hide conditions because they expect to be refused. Refusal is the least likely outcome.

What usually happens instead is one of:

  • A waiting period on that condition specifically, after which it is covered normally
  • A premium loading — you pay more, and you are covered
  • A permanent exclusion for that condition, with everything else covered
  • Nothing at all, because the insurer does not consider it material

Every one of those is a known position you can see and plan around. Compare that with the alternative: cover that looks complete, costs the same as everyone else’s, and may evaporate at the moment you claim. A policy with a visible exclusion is worth more than a policy with an invisible one.

The specific traps

“The agent said not to bother.” Some do say it, because a clean form is a faster sale. The declaration is signed by you, and the consequences land on you. If an agent fills the form, read every answer before signing it.

“It was cured, so it is not pre-existing.” The look-back window asks whether you were diagnosed or advised within the period, not whether you still have it. A resolved condition inside the window is still declarable.

“I did not know about it.” Genuinely unknown conditions are not non-disclosure — you cannot declare what nobody has told you. This is why the definition turns on diagnosis and advice rather than on the existence of a condition.

Family history. Some proposal forms ask. If asked, answer honestly; it usually affects nothing, and a false answer to a direct question is exactly what the disclosure norm covers.

Habits. Smoking, alcohol and tobacco in any form. Understating these on a term policy is one of the more commonly contested points at claim, because a post-mortem or hospital record can contradict the form years later.

If you already got it wrong

You have two routes, both better than doing nothing.

Inside the free-look period — typically 15 days from receiving the policy, 30 for electronic ones — you can cancel outright and start again with a correct form, paying only for the days of cover and any medical-test cost.

After that, write to the insurer declaring the omission and ask them to record it. They may add a waiting period, a loading or an exclusion. That is a far better outcome than the same facts surfacing during a claim investigation, and it converts an argument you would probably lose into an administrative correction.

Insurers would rather price you correctly than fight you later. The ombudsman route exists after a rejection, but it is slower, less certain and considerably more stressful than a letter sent today.

The one-line version

Over-disclose. The cost of declaring something unnecessary is a form that took ten minutes instead of four. The cost of omitting something is finding out during the worst week of your life that you are uninsured.

Sources

Disclaimer: Figures shown here are compiled from IRDAI annual reports and public grievance disclosures, and from insurer public disclosures and policy wordings. Claim settlement ratios and complaint volumes are three-year averages for FY 2024–26. Premiums are indicative illustrations for the stated profile, not quotes — your actual premium depends on your age, health, city, habits and underwriting. Scores are Myinsurancebro's own assessment. Always read the official policy document and speak to an advisor before buying. Myinsurancebro is an IRDAI-licensed insurance advisor — we do not manufacture or underwrite any insurance product.