Aditya Birla Health: 100% CSR. Niva Bupa: 100% CSR. Star Health: 99%. Your Agent Will Show You These Numbers. Here Is What They Do Not Show.
Star Health settled 99.06% of claims in FY 2024-25. Star Health also rejected 2,96,356 claims in FY 2023-24 — nearly 4x the next insurer. Star Health also received 12,186 policyholder complaints — the highest in the industry. Star Health also had the lowest within-3-months settlement rate (82.31%) among all standalone health insurers.
IRDAI issued show-cause notices to 8 major insurers — including 4 of the top 5 by CSR — for violating the Health Master Circular.
Health insurance complaints spiked 41% to 1,37,361 in FY 2024-25. Seven out of ten complaints were about claim refusal, delays, partial payments, and documentation disputes.
CSR by number is the most misleading metric in Indian insurance. This article shows you every insurer’s CSR by number, CSR by amount, incurred claim ratio, and complaint rate — the four numbers that actually tell you whether your insurer will pay when it matters.
The CSR Formula — And Its Fundamental Flaw
Claim Settlement Ratio (CSR) = (Total Claims Settled / Total Claims Received) x 100
IRDAI benchmarks:
- 95%+: Ideal
- 85%+: Good
- Below 85%: Concerning
Why CSR by Number Is Misleading
CSR counts every settled claim equally — whether the insurer paid Rs 5 lakh in full or Rs 1.2 lakh on a Rs 3 lakh claim after sub-limit deductions, co-pay, and room rent proportionate deduction.
A partial settlement where the insurer paid 40% of your bill counts the same as a full settlement. This single flaw makes CSR by number structurally incapable of measuring claim quality.
The Number That Matters: CSR by Amount
CSR by amount = (Total Amount Settled / Total Amount Claimed) x 100
HDFC ERGO: 98.85% by number, 85.33% by amount. That is a 13.5 percentage point gap. For every Rs 100 claimed, HDFC ERGO pays Rs 85.33. The remaining Rs 14.67 is deducted through sub-limits, co-pay, non-payable items, or disputed amounts.
This gap exists for every insurer. No agent shows you both numbers.
Every Standalone Health Insurer — Ranked (FY 2024-25)
| Insurer | CSR by Number | ICR | Complaints per 10K Claims | Total Complaints |
|---|---|---|---|---|
| Aditya Birla Health Insurance | 100% | 71.50% | Low | — |
| Galaxy Health Insurance | 100% | — | — | — |
| Narayana Health Insurance | 100% | — | — | — |
| Niva Bupa Health Insurance | 100% | 61.22% | 42.85 | 3,983 |
| Star Health and Allied Insurance | 99.06% | 70.30% | 52 | 12,186 |
| ManipalCigna Health Insurance | ~98% | 74.81% | — | — |
| Care Health Insurance | 96.74% | 64.53% | 42-47 | 4,423 |
| Standalone sector average | 99.93% | 68.06% | — | — |
What These Numbers Reveal
Niva Bupa reports 100% CSR but has an ICR of just 61.22%. For every Rs 100 it collects in premiums, only Rs 61.22 goes back to policyholders as claims. The remaining Rs 38.78 covers expenses and profits. It also received an IRDAI show-cause notice for Health Master Circular violations — while reporting perfect claim settlement.
Star Health has the largest market share among standalone health insurers. Its 99.06% CSR looks strong until you see 52 complaints per 10,000 claims — the worst complaint ratio in the standalone category. In FY 2023-24, its within-3-months claim settlement rate was just 82.31% — the lowest among all standalone health insurers.
Care Health has a 96.74% CSR — the lowest among standalone health insurers by number. But its ICR is 64.53%, suggesting it may be more selective about which claims it approves while paying decently on approved claims.
Aditya Birla Health jumped from 92.97% CSR in FY 2023-24 to 100% in FY 2024-25. A 7-percentage-point leap in one year warrants scrutiny — this kind of swing usually indicates portfolio restructuring or methodology changes, not a genuine overnight transformation in claim processing.
Every Private General Insurer — Ranked (FY 2024-25)
| Insurer | CSR by Number | CSR by Amount | ICR |
|---|---|---|---|
| Acko General Insurance | 99.98% | 90.39% | 57.82% |
| Reliance General Insurance | 99.32% | 103.48% | 87.34% |
| HDFC ERGO General Insurance | 98.85% | 85.33% | 84.85% |
| ICICI Lombard General Insurance | 98.45% | — | 82.24% |
| Tata AIG General Insurance | 97.07% | 95.59% | 76.24% |
| Go Digit General Insurance | 96.83% | — | 83.78% |
| SBI General Insurance | 96.47% | — | 82.19% |
| Future Generali India Insurance | 96.70% | 76.55% | 95.29% |
| Zurich Kotak General Insurance | 96.06% | 93.88% | 70.69% |
| Bajaj Allianz General Insurance | ~95-98% | — | 87.31% |
| Shriram General Insurance | 95.69% | 86.39% | 74.55% |
| IFFCO Tokio General Insurance | 85.27% | — | 83.74% |
| Kshema General Insurance | 26.88% | — | 40.03% |
What These Numbers Reveal
Acko General has 99.98% CSR but the lowest ICR in the industry at 57.82%. It settles nearly every claim but returns the least per premium rupee. This likely reflects a portfolio dominated by small-ticket claims on low-cost products — easy to approve, low payout amounts.
Reliance General is the only private insurer with CSR by amount above 100% (103.48%). This means it paid out more than the current year’s claimed amount — likely clearing prior-year backlogs.
HDFC ERGO has the most visible gap: 98.85% by number vs 85.33% by amount. For every Rs 1 lakh you claim, expect around Rs 85,000 after deductions.
Future Generali has a 76.55% CSR by amount — the lowest among major private insurers. But its ICR is 95.29% — one of the highest. This paradox suggests it rejects or deducts more per claim but is financially generous overall (likely due to portfolio mix with more group claims).
IFFCO Tokio dropped to 85.27% — well below IRDAI’s 95% ideal benchmark. Kshema General at 26.88% settles barely 1 in 4 claims.
Public Sector Insurers — Ranked (FY 2024-25)
| Insurer | CSR by Number | CSR by Amount | ICR |
|---|---|---|---|
| United India Insurance | 95.26% | — | 92.93% |
| National Insurance | 91.79% | — | 100.22% |
| New India Assurance | 91.75% | 102.71% | 96.61% |
| Oriental Insurance | 90.17% | — | 100.75% |
| Public sector combined ICR | — | — | 99.84% |
The Public Sector Paradox
PSU insurers have the lowest CSR by number (90-95%) but the highest ICR (99.84% combined). They reject more claims than private insurers — but pay more generously on the claims they approve.
New India Assurance has 91.75% CSR but 102.71% CSR by amount — paying out more than claimed. National Insurance and Oriental Insurance have ICRs above 100%, meaning they pay more in claims than they collect in premiums. This is financially unsustainable for the insurers — but objectively the best value for claimants.
The tradeoff: PSU insurers are harder to get claims approved with, but if approved, they pay closer to the full amount. Private insurers approve more easily but deduct more aggressively through sub-limits, co-pay, and non-payable items.
The 90% Problem — Why CSR Doesn’t Capture Your Experience
Only 10.3% of Insured Lives Are Individual Retail Policies
| Category | Share of Insured Lives |
|---|---|
| Government scheme beneficiaries | 42.3% |
| Group/employer policies | 47.4% |
| Individual retail policies | 10.3% |
Group and government claims are processed through employer HR departments and government TPAs — they face less scrutiny, fewer documentation demands, and smoother processing. When these easy claims dominate the denominator, overall CSR looks excellent.
IRDAI does not publish separate CSR for individual vs group policies. This is the single biggest data gap in health insurance transparency. A 99% overall CSR can coexist with a 75% individual retail claim experience — and you would never know from published data.
What Users Actually Experience
A LocalCircles survey of 54,000 respondents across 323 districts found:
| Claim Outcome | Share of Policyholders |
|---|---|
| Claim fully approved | 25% |
| Claim partially approved with valid reasons | 15% |
| Claim partially approved with invalid reasons | 29% |
| Claim rejected with invalid reasons | 15% |
| Claim rejected with valid reasons | ~16% |
Over 50% of policyholders experienced either rejection or partial approval. That is a very different picture from 99% CSR.
Complaint Data — The Metric Insurers Don’t Advertise
Health insurance complaints jumped 41% to 1,37,361 in FY 2024-25 — from 97,503 in FY 2023-24. This is the fastest-growing complaint category across all insurance types.
Complaints per 10,000 Claims
| Insurer | Complaints per 10,000 Claims | Reading |
|---|---|---|
| Bajaj Allianz | 3 | Best in class |
| HDFC ERGO | 15 | Good |
| Care Health | 42-47 | Concerning |
| Niva Bupa | 42.85 | Concerning |
| Star Health | 52 | Worst among standalone |
Total Complaint Volumes (FY 2024-25)
| Insurer | Total Complaints |
|---|---|
| Star Health | 12,186 |
| Care Health | 4,423 |
| Niva Bupa | 3,983 |
| National Insurance | 1,890 |
What Complaints Are About
7 out of 10 complaints relate to:
- Claim refusal / rejection
- Claim settlement delays
- Partial payments / excessive deductions
- Documentation disputes and repeated queries
Bajaj Allianz at 3 complaints per 10,000 claims is a standout. It doesn’t have the highest CSR (95-98%), but policyholders rarely feel the need to escalate. This suggests smoother claim processing even if some claims are rejected — the rejections are better communicated and less contentious.
Incurred Claim Ratio — The Metric Your Agent Never Mentions
ICR = (Claims Paid + Change in Outstanding Claims) / Premiums Earned x 100
This tells you what percentage of your premium actually goes back to policyholders as claims. The rest covers insurer expenses, commissions, and profits.
ICR by Insurer Type
| Category | ICR |
|---|---|
| Public sector (combined) | 99.84% |
| General insurers (overall) | 82.88% |
| Standalone health insurers | 68.06% |
Standalone health insurers return only Rs 68 for every Rs 100 collected. Public sector insurers return Rs 99.84.
Standalone Health Insurer ICR
| Insurer | ICR |
|---|---|
| ManipalCigna Health | 74.81% |
| Aditya Birla Health | 71.50% |
| Star Health | 70.30% |
| Care Health | 64.53% |
| Niva Bupa | 61.22% |
General Insurer ICR (Health Portfolio)
| Insurer | ICR | Reading |
|---|---|---|
| Future Generali | 95.29% | Very high — near break-even |
| United India Insurance | 92.93% | Very high |
| Reliance General | 87.34% | High |
| Bajaj Allianz | 87.31% | High |
| HDFC ERGO | 84.85% | Above average |
| Go Digit | 83.78% | Above average |
| ICICI Lombard | 82.24% | Average |
| SBI General | 82.19% | Average |
| Tata AIG | 76.24% | Below average |
| Shriram General | 74.55% | Below average |
| Zurich Kotak | 70.69% | Low |
| Acko General | 57.82% | Lowest |
What Ideal ICR Looks Like
- Below 60%: Insurer may be overly restrictive with claims or overcharging premiums
- 60-90%: Healthy range — sustainable for the insurer, reasonable for policyholders
- Above 90%: Great for policyholders, potentially unsustainable for the insurer
- Above 100%: Insurer is paying more than it earns — financially unstable long-term
Acko at 57.82% ICR with 99.98% CSR is the most counterintuitive data point. It settles nearly every claim but pays back less than 58 paise per premium rupee. The likely explanation: Acko’s portfolio is dominated by low-ticket policies where claims are small and easy to approve — but the premiums charged are proportionally high relative to claim payouts.
IRDAI Show-Cause Notices — 8 Insurers Flagged (2025)
IRDAI inspected major health insurers for compliance with the Health Master Circular and issued show-cause notices to:
| Insurer | Key Violations |
|---|---|
| New India Assurance | Claim settlement delays |
| ICICI Lombard | Rejections without proper justification |
| HDFC ERGO | Excessive documentation demands |
| Tata AIG | Unwarranted deductions on approved claims |
| Star Health | High rejection and delay rates |
| Niva Bupa | Delays in portability data transfer |
| Care Health | Overly complex Customer Information Sheets |
| ManipalCigna | Non-compliance with settlement timelines |
4 out of the top 5 standalone health insurers by CSR received show-cause notices. A 100% CSR and an IRDAI compliance violation can coexist — because CSR measures outcome, not process.
Top Reasons Claims Get Rejected
| Reason | Share of Rejections | What It Means |
|---|---|---|
| Non-disclosure of pre-existing conditions | 30-40% | You did not declare an existing illness at policy purchase |
| Waiting period violations | ~25% | Claimed within initial/specific disease waiting period |
| Policyholder not responding to queries | 18% | Insurer sent document requests; no response within deadline |
| Claims flagged for clarification | 10-15% | Incomplete or inconsistent medical records |
| Late or mismatched documents | ~5% | Submitted after deadline or wrong documents |
The 5-Year Rule Most People Don’t Know
After 60 months (5 years) of continuous premium payment, insurers cannot deny claims for non-disclosure or misrepresentation of pre-existing conditions. This IRDAI moratorium rule means:
- Even if you forgot to declare diabetes at purchase in 2020
- Even if you deliberately did not disclose hypertension
- After March 2025 (60 months later), the insurer cannot use this as grounds for rejection
This does not apply to fraud — fabricated documents or staged hospitalization can still be rejected. But genuine non-disclosure of pre-existing conditions becomes irrelevant after the moratorium period.
Cashless Claim Timelines — IRDAI Rules vs Reality
| Step | IRDAI Mandate | Actual Experience |
|---|---|---|
| Cashless pre-authorization | 60 minutes | 3-6 hours typical |
| Final discharge authorization | 3 hours | Often next-day |
| Reimbursement settlement | 30 days | 45-90 days common |
| Interest on delayed settlement | 2% above bank rate | Rarely enforced |
A LocalCircles survey found 6 in 10 policyholders waited 6-48 hours for cashless claim approval — far beyond the 60-minute IRDAI mandate.
Network Hospital Counts
| Insurer | Network Hospitals |
|---|---|
| Star Health | 20,000+ |
| Bajaj Allianz | 18,400+ |
| HDFC ERGO | 13,000-16,000+ |
| ICICI Lombard | 10,000+ |
| Niva Bupa | 10,000+ |
Network hospital count matters for cashless claims. But the geographic distribution matters more — 20,000 hospitals concentrated in metros is less useful than 10,000 hospitals spread across Tier 2 and Tier 3 cities.
3-Year CSR Trends — Who Improved, Who Declined
Improved
| Insurer | FY 2022-23 → FY 2024-25 | Change |
|---|---|---|
| Aditya Birla Health | 92.97% → 100% | +7.03 pp |
| Niva Bupa | 92.02% → 100% | +7.98 pp |
| Care Health | Steady improvement → 96.74% | Consistent |
Declined
| Insurer | Direction | Concern |
|---|---|---|
| IFFCO Tokio | Slipped to 85.27% | Below IRDAI’s 95% benchmark |
| Shriram General | Below 90% threshold | — |
| Star Health | Within-3-months CSR: 82.31% | Lowest among standalone (FY 2023-24) |
Top 5 by 3-Year Average CSR
| Rank | Insurer | 3-Year Average CSR |
|---|---|---|
| 1 | New India Assurance | 98.91% |
| 2 | Digit Health Insurance | 98.66% |
| 3 | Bajaj General Insurance | 96.78% |
| 4 | HDFC ERGO | 96.71% |
| 5 | Acko Health Insurance | 96.50% |
3-year average smooths out annual anomalies — a single-year jump to 100% CSR is less meaningful than consistent 96%+ over three years.
The Premium Trap — What Happens Before You Even Claim
CSR measures what happens after you file a claim. It does not measure whether you can afford to keep paying premiums long enough to ever claim.
A LocalCircles survey found 7 in 10 policyholders experienced premium increases of 50-200% cumulatively over 3 years.
| Year | Premium (Hypothetical) | Cumulative Increase |
|---|---|---|
| Year 1 | Rs 15,000 | — |
| Year 2 | Rs 19,500 | +30% |
| Year 3 | Rs 25,350 | +69% |
| Year 4 | Rs 32,955 | +120% |
| Year 5 | Rs 39,546 | +164% |
Many policyholders drop coverage because premiums become unaffordable — especially after a claim triggers an even steeper increase. These people never appear in CSR data because they stopped being policyholders.
CSR only counts people who stayed and claimed. It has a built-in survivorship bias.
Industry-Wide Numbers (FY 2024-25)
| Metric | Value |
|---|---|
| Total health claims processed | 3.26 crore (32.6 million) |
| Total claims paid | Rs 94,248 crore |
| Average claim value | Rs 28,910 |
| Claims settled | 87% |
| Claims repudiated (rejected) | 8% |
| Claims pending | ~5% |
| Cashless claim share | ~58% |
| Health insurance premiums collected | Rs 1,27,417 crore |
| Premium growth (YoY) | 9.19% |
| Lives covered | 58 crore |
| Claims rejected value | ~Rs 30,000 crore (+15% YoY) |
| Total health complaints | 1,37,361 (+41% YoY) |
Rs 30,000 crore in rejected claims. That is real money that real policyholders expected to receive and did not. At Rs 28,910 average claim value, that is roughly 10 lakh+ claims rejected — each representing a family dealing with a medical emergency and a financial shock simultaneously.
How to Actually Evaluate a Health Insurer — The 4-Metric Framework
Stop looking at CSR by number alone. Use these four metrics together:
1. CSR by Number (Baseline)
Should be 95%+. Below 90% is a red flag. But a high number alone means nothing.
2. CSR by Amount (Payout Quality)
Should be 85%+. A 10+ percentage point gap between CSR by number and CSR by amount means aggressive deductions. Compare HDFC ERGO (98.85% vs 85.33% — 13.5 pp gap) with Tata AIG (97.07% vs 95.59% — just 1.5 pp gap).
3. ICR (Premium Value)
Should be 65-90%. Below 60% means you are overpaying relative to claims paid. Above 95% means the insurer may not be financially sustainable long-term.
4. Complaints per 10,000 Claims (Process Quality)
Should be below 20. Above 40 means a significant number of policyholders are unhappy enough to file formal complaints. Bajaj Allianz at 3 is the gold standard. Star Health at 52 is a warning.
Applying the Framework
| Insurer | CSR by Number | CSR by Amount | ICR | Complaints/10K | Verdict |
|---|---|---|---|---|---|
| Bajaj Allianz | ~95-98% | — | 87.31% | 3 | Strong across metrics |
| HDFC ERGO | 98.85% | 85.33% | 84.85% | 15 | High volume, some deductions |
| Tata AIG | 97.07% | 95.59% | 76.24% | — | Best payout quality |
| Star Health | 99.06% | — | 70.30% | 52 | CSR misleading — complaints very high |
| Niva Bupa | 100% | — | 61.22% | 42.85 | Low ICR, IRDAI show-cause |
| Care Health | 96.74% | 92.11% | 64.53% | 42-47 | Decent payout, low ICR |
What IRDAI Changed in 2025-2026
| Change | Impact |
|---|---|
| Claim settlement deadline: 30 days | Must settle or reject within 30 days of receiving all documents |
| Cashless pre-authorization: 60 minutes | Hospitals and TPAs must process within 1 hour |
| Discharge authorization: 3 hours | Final cashless clearance within 3 hours |
| Delay penalty: 2% above bank rate | Insurers must pay interest on delayed settlements |
| Pre-existing disease waiting period: 3 years (reduced from 4) | Shorter wait before PED claims are covered |
| 5-year moratorium on non-disclosure | Cannot reject claims for non-disclosure after 60 months |
| Age limit removal | Cannot deny new policies based on age |
| AYUSH coverage: full sum insured | Sub-limits on Ayurveda, Yoga, Unani, Siddha, Homeopathy removed |
| Telemedicine coverage | Teleconsultation costs must be covered for OPD-opted plans |
The Bottom Line
A 99% CSR does not mean your claim will be paid. It means 99% of claims — including group claims, government scheme claims, and tiny OPD claims — were settled in some form, including partial payments that left policyholders paying lakhs from their own pockets.
Before choosing or renewing your health insurance:
- Check all four metrics — CSR by number, CSR by amount, ICR, and complaints per 10,000 claims
- Look at 3-year trends, not single-year jumps — Aditya Birla going from 92% to 100% in one year deserves more questions, not less
- Read the policy wording for sub-limits — a “settled” claim with 40% deductions is worse than a straightforward rejection you can appeal
- Know the 5-year moratorium rule — after 60 months of continuous premium payment, non-disclosure cannot be used to reject your claim
- Check pre-existing disease waiting periods by insurer — they vary from 2 to 4 years
- Factor in premium sustainability — a policy you cannot afford to renew in Year 4 provides zero coverage in Year 5
The best insurer is not the one with the highest CSR. It is the one that pays the most, complains the least, and keeps premiums affordable long enough for you to actually use the coverage.
Related Guides
- The Room Rent Trap: How a Rs 10 Lakh Policy Paid Only Rs 3 Lakh — CSR says “settled.” Your bank account says Rs 1.07 lakh out of pocket. The proportionate deduction formula that turns a Rs 10L policy into a Rs 3L policy.
- How Much Health Insurance Cover Do You Actually Need? — Rs 5L is not enough. Real hospital costs, the Rs 10L base + Rs 1 Cr super top-up stack, and exact premium numbers by age.
- Pre-Existing Disease Waiting Period: Every Insurer Compared — Waiting periods vary from 2 to 4 years. Some insurers cover day 1. Complete comparison with portability rules.
- Super Top-Up Health Insurance: The Smartest Rs 5,000 You Will Spend — Why a Rs 1 Cr super top-up costs less than a Rs 10L base plan, and how deductibles actually work.
- Company vs Personal Health Insurance: Why Corporate Cover Is Not Enough — Your corporate plan’s CSR is invisible to you. Why owning a personal policy with a high-CSR insurer is the real protection.