You paid your hospital bills out of pocket, collected every stamped receipt, gathered the discharge summary, and submitted your reimbursement claim.
At that stage, you likely expected the claim to be settled within two to three weeks.
Instead, you receive an automated message:
“Your claim is currently under investigation / field verification. We will update you shortly.”
Weeks turn into months. You call customer support and hear the same scripted response:
“The claims investigation team is reviewing the medical records. Please wait.”
Verification agents may show up unannounced at your treating doctor’s clinic, visit the hospital, or question your family. For a household already dealing with unexpected healthcare expenses, this prolonged uncertainty creates severe financial strain.
A widespread misconception among policyholders is that once an insurer marks a file as “under investigation,” they have unlimited time to process it.
That is not how the law works.
Under guidelines established by the Insurance Regulatory and Development Authority of India (IRDAI), insurers are bound by strict turnaround times. When an insurer delays settlement beyond statutory timelines without justified cause, they are legally required to pay Penal Interest at 2% above the prevailing Bank Rate.
Here is an objective guide to how investigation timelines operate, the common excuses insurers use, and how to enforce your legal right to penal interest.
How Long Can an Insurance Claim Remain Under Investigation?
Insurers have the legal right to verify a claim when genuine suspicion of fraud, impersonation, or material non-disclosure exists. However, an investigation cannot serve as an open-ended delay tactic.
Under the IRDAI (Protection of Policyholders’ Interests, Operations and Allied Matters of Insurers) Regulations, claims must adhere to clear procedural windows:
| Claim Stage | Statutory Timeline Mandate | Regulatory Protection |
| Document Query Window | Within 15 days of receiving the claim intimation. | Must request all missing requirements in a single consolidated list, not piecemeal. |
| Standard Claim Decision | Settle or reject within 30 days of receiving the last necessary document. | Applies to all claims that do not require forensic or field investigation. |
| Investigation Ceiling | Must conclude within 90 days from the date of claim intimation. | Insurers cannot leave field investigations open indefinitely. |
| Post-Investigation Settlement | Settle or reject within 30 days of receiving the investigation report. | Overall claim adjudication cannot stretch into indefinite delays. |
| Penalty for Delayed Settlement | Statutory interest at Bank Rate + 2%. | Payable automatically from the date the claim became due until actual disbursement. |
The principle is straightforward: “Under investigation” does not mean exempt from statutory deadlines.
3 Important Rules Insurers Must Follow During an Investigation
When an insurance company flags a claim for verification, they remain bound by statutory claims conduct:
1. Document Queries Cannot Become an Endless Loop
A common delay tactic involves issuing requests one document at a time:
- Week 2: Requesting itemized pharmacy bills.
- Week 5: Requesting indoor case papers (ICP).
- Week 8: Requesting a treating doctor’s certificate.
- Week 11: Requesting historical diagnostic reports.
This practice restarts the clock repeatedly, creating the impression that the review is perpetually beginning anew.
IRDAI regulations prohibit piecemeal demands. Insurers are mandated to call for all additional information or supporting records at one time and within 15 days of receiving the claim. They cannot issue endless, staggered document requests simply to pause regulatory turnaround times.
2. The 90-Day Investigation Ceiling
If an insurer suspects fraud or non-disclosure, they have the right to initiate a field investigation. However, that investigation must be concluded within 90 days from the date of claim intimation.
Once the investigation concludes, the insurer has a further 30 days to convey its final decision and disburse the settlement. Stalling a claim for five, six, or eight months without issuing an adjudication violates these statutory requirements.
3. The Burden of Proof Rests on the Insurer
An investigation is an evidentiary process conducted by the insurer, not a burden placed on the policyholder. If an insurer suspects that hospital charges were inflated or that a condition was pre-existing, the insurer is responsible for gathering the evidence.
A logistical delay between the insurer’s third-party investigator and a hospital’s administrative records department does not suspend the policyholder’s statutory rights.
What Is Penal Interest and How Is It Calculated?
One of the most effective protections for consumers is statutory penal interest.
Under IRDAI regulations, if an insurer delays payment of an admissible claim beyond the prescribed turnaround times without justification, they are legally obligated to pay the claimant interest at a rate 2% higher than the prevailing Reserve Bank of India (RBI) Bank Rate.
The Calculation Formula
Statutory interest on delayed claims is calculated using the following standard formula:
$$\text{Penal Interest} = \frac{\text{Admissible Claim Amount} \times (\text{Bank Rate} + 2\%) \times \text{Days of Delay}}{365}$$
Consider a practical example:
- Admissible Claim Amount: ₹5,00,000
- Prevailing RBI Bank Rate: 6.50%
- Applicable Statutory Rate (6.50% + 2%): 8.50%
- Unjustified Delay Beyond Regulatory Period: 120 days
$$\text{Interest Payable} = \frac{₹5,00,000 \times 8.50\% \times 120}{365} \approx ₹13,972$$
In this case, the claimant is entitled to the principal claim of ₹5,00,000 plus ₹13,972 in statutory penal interest.
By law, this interest is required to be paid automatically (suo-moto) along with the primary claim settlement, calculated from the date the claim became due until the actual date of payment.
3 Common Excuses for Delays (And What the Law Says)
When follow-ups stall, insurers frequently offer three standard justifications:
Excuse 1: “The hospital has not provided indoor case papers, so we cannot proceed.”
- The Legal Position: While insurers are entitled to review medical records, administrative friction between a hospital and an insurer’s field agent does not freeze the regulatory clock. Once the policyholder has submitted all requested personal documentation and signed necessary medical release forms, the statutory timelines continue to run.
Excuse 2: “Your policy is in its first two years, so verification is mandatory.”
- The Legal Position: Insurers often subject early-duration claims (claims arising in the first two years of coverage) to heightened scrutiny to check for pre-existing conditions. However, early-stage claims are still governed by statutory turnaround times. The age of the policy does not grant an insurer the right to exceed the 90-day investigation ceiling.
Excuse 3: “Our internal medical panel is reviewing the file.”
- The Legal Position: Internal medical consultations are part of normal internal claim assessment. They must be completed within the 30-day window following document submission or investigation completion. Internal administrative scheduling cannot override statutory deadlines.
Action Plan: What to Do When Your Claim Is Stuck
If your insurance claim has been marked “under investigation” for several months without resolution, take these concrete steps:
Step 1: Establish Your Submission Baseline
Audit your records and identify:
- Date of original claim intimation and document submission.
- Date the insurer acknowledged receipt.
- Date the insurer issued any document queries.
- Date you submitted the requested records.
Keep digital copies of all postal receipts, emails, and portal submission acknowledgments. These timestamps establish the exact point from which the regulatory clock began.
Step 2: Submit a Formal Notice to the Grievance Redressal Officer (GRO)
Move beyond verbal conversations with call center representatives. Submit a formal, written representation via email to the insurer’s designated Grievance Redressal Officer (GRO). Your communication should explicitly state:
- The claim number and policy details.
- The date all required documents were delivered.
- A citation of the IRDAI (Protection of Policyholders’ Interests) Regulations regarding turnaround times and the 90-day investigation ceiling.
- A formal request to either disburse the claim within 7 days or issue a formal written decision, alongside applicable penal interest at Bank Rate + 2%.
Step 3: Accept Delayed Settlements “Without Prejudice”
If an insurer finally releases the claim after months of delay, check the settlement advice. Insurers often transfer only the base claim amount while omitting statutory interest.
If asked to sign a discharge voucher or declaration form, write:
“Accepted without prejudice to statutory penal interest entitlements under IRDAI regulations.”
Signing an unconditional blanket discharge voucher can make it difficult to recover accrued delay interest through regulatory forums later.
Step 4: Escalate to Bima Bharosa and the Insurance Ombudsman
If the insurer fails to respond within 14 days or refuses to pay accrued penal interest:
- IRDAI Bima Bharosa Portal: Register a complaint on https://bimabharosa.irdai.gov.in citing a breach of claims turnaround times.
- The Insurance Ombudsman: Lodge a complaint with your regional Insurance Ombudsman. The Ombudsman has the authority to award the full claim amount, penalize procedural delays, and enforce statutory interest on delayed disbursements.
Frequently Asked Questions (FAQs)
1. Does the insurer have to pay penal interest automatically, or must I demand it?
Under IRDAI regulations, an insurer is legally obligated to calculate and pay statutory penal interest suo-moto (automatically) alongside a delayed settlement. In practice, insurers frequently disburse only the principal sum. Policyholders often need to submit a written request referencing statutory interest clauses to recover the interest due.
2. What Bank Rate is used to calculate the interest?
The Bank Rate is fixed by the Reserve Bank of India (RBI) as part of its monetary policy decisions. Under IRDAI rules, the applicable rate is 2% above the prevailing Bank Rate during the period of delay.
3. Can an insurer investigate a pre-existing condition indefinitely?
No. While an insurer can investigate whether a condition was pre-existing, that verification remains subject to the 90-day investigation ceiling. Furthermore, under IRDAI moratorium rules, after 5 continuous policy years (60 months) of uninterrupted coverage, a health insurance claim cannot be contested on grounds of non-disclosure or pre-existing diseases, unless deliberate fraud is conclusively established.
4. Can I approach the Insurance Ombudsman if my claim is only delayed and not formally rejected?
Yes. A formal rejection letter is not required. Under the Insurance Ombudsman Rules, undue delay in the settlement of claims is an explicit ground for filing a complaint. If you have filed a grievance with the insurer and received no resolution within 30 days, you can escalate the matter to the Ombudsman.
The Takeaway
An insurance claim marked “under investigation” does not require you to wait indefinitely.
Insurers have legitimate grounds to investigate suspected fraud or inconsistencies in medical records. However, those investigations must operate within defined statutory timelines.
As a policyholder, your primary protection is a clear paper trail. Document every submission date, track communications, and understand your rights under the regulatory framework. When an insurer delays an admissible claim beyond statutory limits without justification, they are legally required to compensate you with interest for the delay.
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