IDFC First Bank vs IndusInd Bank (2026): Growth, Governance, NIM & Which Is Better?
IDFC First Bank and IndusInd Bank generated almost the same Q1 FY2027 profit, but the risks underneath those profits sit in completely different places.
IDFC First earned ₹1,075 crore.
IndusInd earned ₹1,037 crore on a consolidated basis.
IDFC First's risks are visible mainly in operating cost, microfinance credit cost and the challenge of funding 20% growth.
IndusInd's risks sit in asset-quality repair, weak year-on-year loan growth and rebuilding trust after its historic derivatives-accounting failure.
That makes a conventional "which has higher PAT?" comparison almost useless.
Where does the risk live?
IDFC First Bank vs IndusInd Bank: Q1 FY2027 scoreboard
| Metric | IDFC First Bank | IndusInd Bank | Current Reading |
|---|---|---|---|
| Q1 PAT | ₹1,075 Cr | ₹1,037 Cr consolidated | Almost identical |
| PAT growth | +132.4% | +71.7% | Both recovering |
| NII | ₹5,972 Cr | ₹4,685 Cr | IDFC First |
| NII growth | +21.1% | ~+1% | IDFC First |
| Reported NIM | 5.96% | 3.57% | IDFC First |
| Underlying margin context | Includes ~6 bps tax-refund-interest benefit | ~3.35% excluding larger tax-refund-interest benefit | IDFC First by wide margin |
| Customer / total deposits | ₹2,99,405 Cr customer deposits | ₹4,14,766 Cr deposits | IndusInd |
| Deposit growth | +16.6% | +4.4% | IDFC First |
| CASA ratio | 50.8% | 29.43% | IDFC First |
| Loans / advances | ₹3,05,370 Cr incl. credit substitutes | ₹3,26,274 Cr | Similar asset scale |
| Advance growth YoY | +20.6% | ~−2.2% | IDFC First |
| Advance growth QoQ | +5.2% | ~+3% | IDFC First |
| GNPA | 1.51% | 3.25% | IDFC First |
| NNPA | 0.44% | 0.95% | IDFC First |
| Provision coverage | Healthy, with improving RAM quality | 71.42% | IDFC First quality |
| Capital adequacy | 15.05% | 17.15% | IndusInd |
| CET1 / Tier-1 | 13.33% CET1 | 16.10% Tier-1 | IndusInd |
| Liquidity coverage | Strong liquidity profile | 127% average LCR | Both adequately liquid |
| Cost-to-income | 70.7% excluding trading gains | Lower operating-cost burden after restructuring | IndusInd efficiency |
| Late-August P/E | ~31x | ~58x depressed-TTM basis | Indus P/E not useful for normalised valuation |
| Late-August P/B | ~1.48x | ~1.17x | IndusInd lower |
Risk 1 — Funding: IDFC has the better deposits, IndusInd has more of them
This distinction is easy to miss.
IDFC First's CASA ratio is 50.8%.
IndusInd's is only 29.43%.
IDFC therefore has the higher-quality low-cost funding mix.
But IndusInd has approximately ₹4.15 lakh crore of deposits against ₹3.26 lakh crore of advances.
IDFC has approximately ₹2.99 lakh crore of customer deposits against ₹3.05 lakh crore of loan assets.
So IndusInd has more quantitative funding headroom.
Funding quality and funding quantity are different variables
A high CASA ratio does not automatically mean unlimited room for loan growth.
IDFC First has transformed its liabilities spectacularly.
Customer deposits have grown almost eightfold since the 2018 merger.
Retail deposits represent roughly 80% of customer deposits.
Legacy borrowings have been replaced by granular deposits.
The challenge now is maintaining deposit growth fast enough to support 20%+ assets.
IDFC's deposit growth is currently strong enough
Customer deposits increased 16.6% year on year.
Total deposits including certificates of deposit increased 17.7%.
CASA grew 24.6%.
This is healthy.
Loans are still growing faster at 20.6%.
That gap should not become permanent.
IndusInd has the opposite funding issue
It has plenty of deposits relative to current loans, but the deposit franchise itself is growing only slowly.
Deposits increased around 4.4% year on year.
Advances remained below the prior-year level.
The current funding surplus partly exists because the loan book contracted.
As lending begins growing again, IndusInd needs granular deposit growth to accelerate too.
IndusInd's lower CASA matters when growth returns
A 29.43% CASA ratio means a larger proportion of deposits must be remunerated at term-deposit rates.
Cost of funds declined sharply to 5.05% from 5.69%.
That helped margin.
But a bank restarting 15%-plus growth could again face funding pressure if CASA does not improve.
Risk 2 — Credit: IDFC First currently has the cleaner book
GNPA is 1.51% versus IndusInd at 3.25%.
NNPA is 0.44% versus 0.95%.
This is a meaningful difference.
IDFC's reported asset quality also improved both year on year and sequentially.
IDFC's Retail, Agri and MSME book is behaving better despite rapid growth
RAM GNPA improved to approximately 1.40%.
RAM NNPA improved to 0.52%.
SMA-1 and SMA-2 remained stable around 0.77%.
This matters because rapid 18% growth in granular lending can create hidden stress before it reaches NPA.
Early delinquency currently looks controlled.
The MFI book is the exception
IDFC First's major recent credit problem came from microfinance.
The bank cut the portfolio roughly in half from FY2024 levels.
It has received CGFMU claims against the stressed portfolio.
Newer disbursements operate under tighter protection and underwriting rules.
The cycle appears to be normalising.
IDFC therefore has credit risk, but it is identifiable
The problem is concentrated enough that investors can track it separately.
Useful MFI indicators are:
- Portfolio size.
- Collection efficiency.
- CGFMU coverage.
- Provision rate.
- Regional concentration.
The rest of the loan book currently shows substantially better asset quality.
IndusInd's credit challenge is broader
GNPA remains above 3%.
The bank has exposure across:
- Vehicle finance.
- Microfinance.
- Consumer banking.
- Corporate credit.
- SME.
- Rural lending.
Different parts of the franchise went through stress at different times.
This makes the recovery less dependent on one isolated book.
The positive signal is that IndusInd's NPAs improved sequentially
GNPA declined from 3.43% to 3.25%.
NNPA declined from 1.00% to 0.95%.
Provisions fell to ₹1,384 crore from ₹1,760 crore a year earlier.
This lower provision burden contributed materially to profit recovery.
IndusInd needs several more quarters before the credit cycle can be called normal
A 0.95% NNPA ratio is manageable but still more than twice IDFC First's.
The appropriate milestones are:
- GNPA below 3%.
- NNPA comfortably below 1%.
- Falling slippages.
- Positive loan growth.
- Stable provision coverage.
Risk-adjusted NIM makes IDFC's advantage clearer
IDFC First reported risk-adjusted NII of 4.75% of average assets after subtracting provisions from NII.
This is unusually useful disclosure.
Even after elevated credit costs, the bank retains a strong spread.
That gives management room to invest heavily in the operating franchise.
IndusInd's 3.57% reported NIM is not the correct recurring comparison
The quarter included approximately ₹284 crore of tax-refund interest.
That income increased reported margin.
Underlying NIM excluding the benefit was approximately 3.35% based on management commentary reported after results.
IDFC First's underlying NIM remains more than two-and-a-half percentage points higher.
IDFC's own NIM also contains a small tax-refund benefit
The company disclosed an approximately six-basis-point contribution from interest on an income-tax refund.
Even adjusting for that amount, NIM remains close to 5.9%.
The structural difference versus IndusInd therefore remains enormous.
Risk 3 — Operating cost: this is where IDFC First looks weakest
A 70.7% cost-to-income ratio is expensive for a bank that wants to become a 16%+ ROE franchise.
The ratio has improved from 73.8% a year earlier.
But it remains high.
IDFC's high cost is partly deliberate
The bank has been building businesses whose costs arrive before their revenue matures.
Examples include:
- Retail liability acquisition.
- New branches.
- Credit cards.
- Digital infrastructure.
- Rural banking.
- Wealth.
- Transaction banking.
Management expects scale to reduce unit costs over several years.
This is the biggest operating-leverage opportunity in either stock
If IDFC can take cost-to-income from roughly 71% toward 60% without losing growth, enormous incremental revenue falls toward PPOP and PAT.
The bank does not need another 200 basis points of NIM.
It needs to monetise the NIM it already has.
IndusInd currently has less operating-cost pressure
Q1 operating expenses declined to ₹3,698 crore from ₹4,229 crore a year earlier.
Net revenue was approximately ₹6,471 crore.
PPOP increased to ₹2,773 crore.
Cost control therefore helped compensate for extremely weak revenue growth.
Cost reduction cannot substitute for revenue growth forever
IndusInd NII increased only about 1%.
Fee and other income declined approximately 17%.
Net revenue declined year on year.
A bank cannot repeatedly cut its way to high earnings growth.
The next stage requires the top line to restart.
Risk 4 — Governance: this is where the comparison becomes one-sided
IndusInd is still rebuilding trust after the historic derivatives-accounting failure that produced an estimated roughly $230 million financial impact.
The incident was serious enough to trigger major leadership changes.
Former senior executives departed.
The board investigated root causes, control gaps and staff accountability.
Why does a derivatives-accounting failure matter years later?
Because bank investors cannot independently inspect every internal treasury position.
They rely on:
- Internal controls.
- Auditors.
- Management certification.
- Board oversight.
- Risk systems.
When those systems fail, the economic damage extends beyond the accounting adjustment itself.
The market increases the discount rate applied to future book value.
Rajiv Anand's mandate is therefore partly financial and partly institutional
He became MD & CEO in August 2025.
Before IndusInd, he was Deputy Managing Director at Axis Bank and had led major wholesale and digital businesses.
His current priorities include:
- Disciplined growth.
- Balance-sheet resilience.
- Governance.
- Retail and SME diversification.
- Technology.
- Reducing dependence on legacy risk pockets.
Q1 suggests the franchise has moved from stabilisation toward controlled growth
Advances increased approximately 3% sequentially.
This was significant because the bank had been shrinking its loan book.
Year-on-year advances remained approximately 2.2% lower.
The next milestone is therefore simple:
turn sequential recovery into sustainable annual growth.
IDFC First has no comparable governance overhang today
Its current risk is execution, not rehabilitation of trust.
The bank does face ordinary governance, fraud and operational risks like every large lender.
Its Q1 investor materials explicitly discuss building the institution around governance and customer-friendly banking.
The market currently does not impose an IndusInd-like credibility discount.
Capital is one area where IndusInd is clearly stronger
Total capital adequacy was approximately 17.15%.
Tier-1 capital was approximately 16.10%.
IDFC First reported 15.05% total capital and 13.33% CET1.
That gives IndusInd more regulatory capital cushion.
Why doesn't that make IndusInd automatically safer?
Capital is only one layer of bank safety.
A bank also needs:
- Clean assets.
- Reliable controls.
- Stable deposits.
- Strong liquidity.
- Accurate accounting.
- Profitable operations.
IndusInd wins the current capital-ratio comparison.
IDFC First wins several of the other layers.
The valuations reflect these different risks imperfectly
IDFC First trades around 1.5x book.
IndusInd trades around 1.2x.
The gap is modest considering the difference in current asset quality and growth.
Why?
Because IDFC First's ROE is only 8.98% and its trailing P/E is already around 31x.
Investors are paying for future operating leverage rather than high current equity returns.
IndusInd's 58x trailing P/E is a recovery-accounting illusion
The stock is not being valued like a 58x-growth bank.
The denominator contains the weak earnings generated during the derivatives and credit-quality crisis.
As those quarters roll out of trailing earnings, P/E can decline sharply even if the share price stays unchanged.
For IndusInd today, price-to-book and normalised ROA are more useful.
But a low P/B is only valuable if book value can earn acceptable returns
IndusInd around 1.2x book is not automatically cheap.
It becomes compelling if:
- NIM normalises.
- ROA returns above 1%.
- ROE reaches double digits.
- GNPA keeps falling.
- Governance remains clean.
If returns remain depressed, the valuation discount is justified.
IDFC's 1.5x book requires operating leverage to arrive
Current ROE below 9% is too low for a bank permanently valued at a substantial premium to book.
The investment case assumes:
- Cost-to-income falls.
- Credit cost normalises.
- ROA rises materially above 1%.
- ROE ultimately reaches the mid-teens.
The Q1 result is evidence that the path exists.
It is not proof that the destination has been reached.
The stocks have both recovered—but for different reasons
| Bull Run Snapshot — 25 Aug 2026 | IDFC First Bank | IndusInd Bank |
|---|---|---|
| Price | ₹85.00 | ₹1,015.00 |
| Market capitalisation | ₹68,461 Cr | ₹78,709 Cr |
| 1-month return | +5.21% | +1.90% |
| 3-month return | +18.91% | +8.87% |
| 6-month return | +16.74% | +5.22% |
| 1-year return | +20.94% | +31.67% |
| 52-week high | ₹88.76 | ₹1,068.80 |
| 52-week low | ₹58.67 | ₹710.60 |
| Bull Run Score | 37.5/100 | 2.3/100 |
IndusInd's stronger one-year stock return reflects recovery from a much more distressed starting point.
IDFC First's recent three-month momentum reflects the acceleration in profit and operating leverage.
What would make IDFC First's current premium worthwhile?
Needed
- Loan growth stays around high teens.
- CASA remains near 50%.
- Cost-to-income declines.
- MFI credit cost normalises.
- ROA rises toward 1.3%-1.5%.
- ROE moves toward the mid-teens.
Thesis breaker
- Deposit growth lags assets persistently.
- MFI stress returns.
- Cost-to-income stays near 70%.
- ROE remains below 10%.
- Valuation compresses before earnings catch up.
What would turn IndusInd into the more attractive recovery?
Needed
- Loans turn positive year on year.
- Underlying NIM improves.
- GNPA falls below 3%.
- NNPA declines well below 1%.
- Revenue growth restarts.
- Governance stays clean.
Thesis breaker
- Another control failure.
- Loan growth remains negative.
- Fee income continues shrinking.
- Vehicle or microfinance stress reaccelerates.
- Low P/B proves to be a value trap.
IDFC First Bank vs IndusInd Bank: current conclusion
IDFC First Bank currently has the stronger operating trajectory.
Loans are growing 20%+.
Deposits are growing mid-teens.
CASA is above 50%.
Underlying NIM is close to 6%.
Asset quality is substantially better.
IndusInd currently has two meaningful advantages: more funding headroom and more regulatory capital.
It also trades at a lower book-value multiple.
IDFC First Bank vs IndusInd Bank FAQs
Which bank is larger?
IndusInd currently has the larger deposit base and slightly larger advance book. Their market capitalisations are much closer than the balance-sheet difference suggests.
Which is growing loans faster?
IDFC First Bank at approximately 20.6% year-on-year. IndusInd's advances remained around 2% lower year on year despite a sequential recovery.
Which has the higher NIM?
IDFC First Bank by a very wide margin. Its Q1 NIM was 5.96%, while IndusInd's reported 3.57% included a tax-refund-interest benefit and underlying NIM was around 3.35%.
Which has the better CASA ratio?
IDFC First Bank at 50.8% versus IndusInd Bank at 29.43%.
Which has more funding headroom?
IndusInd currently has more deposits relative to its advance book. IDFC has a better low-cost funding mix but its loan assets already closely match its deposit base.
Which has better asset quality?
IDFC First Bank, with GNPA of 1.51% and NNPA of 0.44% versus IndusInd Bank at 3.25% and 0.95%.
Which is better capitalised?
IndusInd Bank on current reported regulatory capital ratios.
Why is IDFC First's ROE still low?
The bank continues to operate with a high cost-to-income ratio and elevated credit costs linked partly to the recent microfinance cycle.
Why is IndusInd's trailing P/E so high?
Trailing earnings still contain crisis-affected quarters. Price-to-book and normalised future profitability are more useful for analysing the recovery.
Where can investors check the Bull Run data?
Use the IDFC First Bank stock page and IndusInd Bank stock page.
Research sources
Disclaimer
This article is educational and informational only. IDFC First Bank and IndusInd Bank disclose deposits, advances, margins and capital using different definitions in some cases. IDFC First's NIM includes a small benefit from interest on an income-tax refund, while IndusInd's Q1 reported NIM received a larger tax-refund-interest benefit; these effects are stated separately. IndusInd's historical derivatives-accounting issue remains relevant to governance analysis but does not imply a current misstatement. The bank has stated that root causes and control gaps were investigated and addressed. Market valuation ratios can move daily, and trailing P/E for recovery banks can be distorted by unusually weak historical earnings. Nothing here recommends buying, selling or holding IDFC First Bank, IndusInd Bank or any security. Bull Run is not a SEBI-registered Research Analyst or Investment Adviser.