Last Updated on 16th April 2026

Methodology

1. What Does ILM's Health Insurance Ratings Evaluate?

ILM ratings assess broad aspects:

1.1 Product Promises

What the health insurance plan offers, in terms of coverage, conditions and limitations.

1.2 Delivery Track Record

How consistently and effectively the insurer delivers on those promises, assessed through:

  • Claims performance
  • Customer service experience

1.3 Insurer Legacy

The insurer's long-term institutional strength and reliability in the Indian insurance ecosystem is assessed. This assessment captures the insurer's ability to honour commitments over time and is evaluated using multiple parameters.

2. Scope of Plans Covered

Included

  • Comprehensive retail health insurance plans
  • Plans available for online purchase through the official insurer website

Excluded (unless explicitly stated)

  • Group or employer policies
  • Disease-specific plans
  • Critical illness policies
  • OPD-only covers
  • Other sub-standard plans

3. Rating Framework Overview

The final health insurance rating is derived from four parameters, each scored independently and combined using internal weightages:

Product Benefits

Claims Experience

Customer Service

Insurer's Legacy

ILM Rating

Together, these four parameters determine the final product rating.

4. Product Benefits – Scoring Methodology

4.1 What Is Evaluated

Product Benefits assess coverage elements that most materially impact real-world hospitalisation claims over the long term.

4.2 Parameters Considered

Each plan is evaluated on the following:

  • In-patient Hospitalisation Cover
  • Pre & Post-Hospitalisation Cover
  • Day Care Treatment Cover
  • Domiciliary Hospitalisation Cover
  • Modern Treatments Cover
  • Organ Donor Cover
  • Bonus (Bonus / Super Bonus, as applicable)
  • Refill / Restoration Benefit
  • Waiting Periods
  • Permanent Exclusions

All hidden and special conditions under each parameter are assigned separate weightage. We are also continuously expanding the framework by adding more parameters to the rating.

4.3 Scoring Method

  • Each sub-parameter is scored out of 5
  • A relative scoring approach is used
  • Plans are compared against each other, not against an absolute benchmark
  • Pre-defined internal weightages are applied to each sub-parameter
  • Weighted scores are consolidated to arrive at the Product Benefits score

4.4 Sum Insured Criteria

  • All products data are collected for a Sum Insured of ₹10 lakh
  • This ensures uniformity and comparability across plans

5. Data Sources for Product Benefits

Data must be collected only from the following official sources:

  • Product brochures
  • Policy wordings
  • Prospectus
  • Insurer's official website plan page

No third-party, aggregator or any other marketing material is permitted.

6. Availability Rule

If a benefit is mentioned in the brochure or policy wording but is not available on the insurer's official online buying journey or quote page, the benefit is treated as not available.

Ratings are based strictly on what a customer can access at the time of purchase, not on theoretical, offline or sales material.

7. Claims Experience – Scoring Methodology

7.1 What Is Measured?

Claims Experience reflects insurer-level performance, not product-specific outcomes.

7.2 Metrics Considered

  • Percentage of claims settled within 30 days
  • Claims Incurred Ratio (ICR)
  • Claim-related complaints per 10000 claims registered
  • Claim rejection ratio (Based on rejection & repudiation cases)
  • Claim Settlement Ratio (Based on number & value of claims)
  • Cashless hospital network size

7.3 Data Sources

  • Public disclosures of respective insurers

8. Customer Service – Scoring Methodology

Customer Service ratings also reflect insurer-level performance.

8.1 Metrics Considered

  • Policy-related complaints (Public disclosures)
  • Responsiveness on X (Twitter)
  • Toll-free helpline response experience

8.2 Evaluation Method

  • Complaint data is taken from public disclosures of insurers
  • Social media and helpline responsiveness are:
    • Observed manually
    • Recorded using structured observations
  • Scored using a separate relative scoring framework

9. Legacy – Scoring Methodology

9.1 Why Legacy Is Included?

Insurer legacy is evaluated as one of the core parameters in the rating framework.

9.2 What Legacy Measures?

Legacy assesses the insurer's institutional strength and long-term presence in the Indian insurance ecosystem. It is evaluated under four sub-parameters, combined using predefined internal weightages:

  • Years of Presence of Regulatory Financial Service
  • Ombudsman Awards and Recommendations: Total number of awards and recommendations passed against the insurer. Evaluated relative to peers, considering scale and volume.
  • Ownership and Regulatory Structure
  • Multi-Line Insurance Experience: Whether the insurer operates across multiple insurance lines (health, motor, fire, marine, etc.) or is mono-line

9.3 Scoring Method for Legacy

  • Each sub-parameter is scored independently with customized scoring methodology
  • Insurers are compared against peers with absolute benchmarks
  • Predefined internal weightages are applied to each sub-parameter
  • Weighted scores are combined to arrive at the Legacy score

9.4 Data sources for evaluating Legacy:

  • Official disclosures and declarations published on the insurer's website
  • Insurance Ombudsman Annual Report

10. Final Rating Calculation

The overall rating is a weighted combination of:

  • Product Benefits (highest weightage)
  • Claims Experience (second highest weightage)
  • Legacy
  • Customer Service

11. Premium Treatment

  • Premium is not included in the rating
  • Affordability is subjective and varies by individual
  • A plan that feels expensive to one person may feel affordable to another

Users are encouraged to independently judge whether the premium paid feels fair for the benefits offered.