Bank of India vs Central Bank (2026): Growth, NIM, ROA, NPAs & Which Is Better?

Bank of India vs Central Bank: Q1 FY2027 scoreboard

Bank of India starts with a narrower spread

Global NIM is approximately 2.52%.

That is 54 basis points below Central Bank.

For a bank with nearly ₹8 lakh crore of advances, a margin gap of half a percentage point is economically large.

If nothing else differed, Central Bank should produce a materially stronger return on assets.

It does not.

Leak number one: operating costs

Central Bank cost-to-income is approximately 55.40%.

Bank of India is 46.33%.

That difference is more than nine percentage points.

For every ₹100 of operating income:

Central Bank spends roughly ₹55 before provisions.

Bank of India spends around ₹46.

Much of Central's NIM advantage disappears right there.

This is the most important Central Bank metric—not 29% loan growth

Loan growth attracts attention because 28.58% is an unusually large number.

But a bank cannot create maximum shareholder value merely by adding assets quickly.

It needs operating infrastructure that becomes more productive as the balance sheet grows.

If cost-to-income remains above 55%, a meaningful share of incremental revenue will continue being consumed before it reaches pre-provision profit.

The quarter demonstrates the problem clearly

Central Bank NII increased 15.70%.

Yet operating profit declined 5.12%.

That is not the earnings bridge investors want from a high-growth bank.

Ideally:

loan growth drives NII growth,

NII growth drives operating-profit growth,

and operating leverage drives PAT growth.

Central achieved the first step but not the second.

Bank of India's Q1 did not depend on a wide NIM

The bank instead created earnings through a combination of:

• Rapid credit growth.
• Lower operating-cost intensity.
• Non-interest income.
• Recoveries.
• Very low credit cost.

This means BOI's current investment case is not simply a bet that NIM expands.

The bank is already producing acceptable returns with a relatively modest margin.

Leak number two: Central Bank's credit cost is higher

Central Bank: approximately 0.40%.

Bank of India: approximately 0.15%.

A 25-basis-point difference is meaningful when applied across multi-lakh-crore credit books.

Again, Central begins with more NIM but loses part of that advantage before profit reaches shareholders.

0.40% credit cost is not objectively bad

Central Bank's figure remains low relative to the historical PSU-bank NPA cycle.

The point is comparative.

Bank of India's current provision burden is exceptionally low.

This allows a narrower NIM to produce almost the same ROA.

Fresh slippages are excellent at both banks

Bank of India reported a slippage ratio around 0.24%.

Central Bank was around 0.29%.

Those are both extremely strong numbers.

This matters because current GNPA ratios are largely backward-looking.

Slippage tells investors how much new stress is entering the system today.

The real Central Bank credit question is therefore about new loan vintages

The bank is now growing advances 28.58%.

Corporate credit increased approximately 46.52%.

RAM credit increased around 21.38%.

Today's slippage ratio reflects loans originated in earlier periods.

The credit quality of the 2026 growth surge will only become fully visible after those loans season.

That makes Central Bank's growth unusually powerful and unusually difficult to judge

If the new book remains clean:

• NII compounds quickly.
• ROA can rise.
• Fixed-cost absorption improves.
• Book value grows.
• The P/B multiple can rerate.

If underwriting deteriorates:

• Future slippages rise.
• Credit cost rises.
• The NIM advantage gets consumed by provisions.

Bank of India's 18.64% advance growth is already aggressive

BOI does not need Central's 29% pace to qualify as a high-growth PSU bank.

Its RAM book grew 19.75%.

Retail grew approximately 20.60%.

MSME increased around 19.34%.

Agriculture grew roughly 18.92%.

Corporate credit increased around 18.44%.

The growth is both fast and broad.

That broadness reduces dependence on one credit cycle

Bank of India's growth is not overwhelmingly concentrated in corporates.

This gives the bank exposure to multiple economic engines:

• Household borrowing.
• Vehicle finance.
• MSME capex.
• Agricultural activity.
• Corporate investment.

Diversification does not eliminate credit risk, but it reduces dependence on one borrower category.

Central Bank's 46% corporate growth deserves more scrutiny

Corporate banking can be extremely profitable when relationships generate:

• Working capital.
• Cash management.
• Trade finance.
• FX fees.
• Current accounts.

But the large ticket size means underwriting mistakes can create disproportionate future NPAs.

A few weak corporate exposures can undo the economics of thousands of performing retail loans.

Asset quality currently favours Bank of India on gross NPAs

BOI GNPA: 1.81%.

Central Bank: 2.60%.

The 79-basis-point difference is meaningful.

Bank of India currently has a much smaller recognised stock of bad loans relative to advances.

Net NPA is almost identical

Bank of India:

0.51%.

Central Bank:

0.49%.

Central Bank closes the gap because provision coverage is stronger at approximately 95.86% versus BOI around 93.83%.

This means Central has more gross stress but has already provisioned aggressively against it.

For future profitability, gross NPA still matters

High provision coverage is positive.

But a lower gross stressed-asset stock usually reduces:

• Collection complexity.
• Recovery dependence.
• Management attention.
• Future write-off requirements.

Bank of India's lower GNPA therefore remains a real operating advantage.

ROA reveals the final outcome of all these differences

Bank of India: approximately 1.01%.

Central Bank: approximately 1.00%.

The numbers are almost identical.

That is the entire article in one line:

Central Bank begins with much better margin economics but loses enough through operating costs and credit provisions that the final asset return is no better than Bank of India's.

ROE gives Bank of India a clearer advantage

16.12% versus Central Bank at approximately 14.92%.

BOI therefore currently compounds shareholder equity faster.

That matters because the two stocks trade at similarly low book-value multiples.

Capital is strong enough at both banks

Bank of India total capital adequacy is approximately 18.69%.

Central Bank is around 18.28%.

Neither appears close to an immediate regulatory-capital constraint.

That means Central Bank has enough capital to pursue growth; the concern is not whether it can grow.

The concern is what return the growth produces.

Central Bank has a remarkable funding advantage it still has not fully monetised

CASA at 46.61% is among the strongest features of the bank.

Cost of deposits is also relatively low.

This gives management a valuable raw material.

If cost-to-income falls toward 50% while NIM remains around 3%, ROA can improve significantly without requiring even faster loan growth.

A five-percentage-point cost-ratio improvement could matter more than another ten points of loan growth

This is a conceptual rather than forecasting statement.

Central Bank already has rapid balance-sheet expansion.

The missing piece is operating leverage.

If revenue from the new loan book grows while branches, employees, technology and administrative expenses rise more slowly, a greater portion of NII reaches pre-provision profit.

That is the cleanest path toward a sustainably higher ROA.

Bank of India has already achieved much more of that operating leverage

Cost-to-income is 46.33%.

Operating profit increased almost 26%.

Net profit increased more than 36%.

BOI's challenge is therefore not a dramatic cost transformation.

It is preserving the current efficiency while continuing fast credit growth.

The relative valuation therefore favours Bank of India's current economics

For approximately 0.79x book and 5.55x earnings, BOI currently offers:

• 1.01% ROA.
• 16.12% ROE.
• 1.81% GNPA.
• 0.15% credit cost.
• 46.33% cost-to-income.
• 18.64% loan growth.

Those are strong figures for a bank still trading below book.

Central Bank's rerating requires more execution

At 0.75x book, the stock is cheap.

But the discount can persist if:

• Cost-to-income stays above 55%.
• ROA remains around 1%.
• Corporate-credit growth creates future stress.
• Operating profit remains weak despite NII growth.

The market is not simply refusing to notice the 29% loan-growth number.

It is questioning the quality of conversion.

The rerating path for Central Bank is unusually clear

Management does not need 40% earnings growth.

It needs evidence that the existing business becomes more productive.

The most persuasive sequence would be:

• Cost-to-income moves below 53%, then toward 50%.
• NIM stays around 3%.
• GNPA falls below 2.5%.
• ROA rises toward 1.15%.
• ROE moves toward 16%-17%.
• Loan growth normalises without collapsing.

Bank of India's rerating path is simpler

BOI needs to prove that current progress is durable:

• ROA stays above 1%.
• NIM improves modestly.
• Loan growth remains mid-teens.
• GNPA remains below 2%.
• Credit cost remains controlled.

If that occurs, a permanent valuation below book becomes harder to justify.

The growth-quality stress test

The market snapshot shows very different investor sentiment

Central Bank's negative one-year stock return makes the rerating case more contrarian

The share price had fallen roughly 14% over the year in Bull Run's August 25 snapshot despite very strong current credit growth.

The market is therefore clearly demanding proof that the growth becomes earnings.

This creates optionality if the scepticism is excessive.

It also acts as a warning not to equate rapid advances growth with automatic stock returns.

Bank of India's stock has already received more recognition

BOI's one-year return was positive despite a weak six-month period.

The market has begun recognising:

• ROA above 1%.
• Low GNPA.
• Strong profit growth.
• Low credit cost.

Yet the valuation remains below book and below 6x earnings.

What would make Central Bank the more compelling stock?

The biggest upside case is not another acceleration in loan growth.

It is operating leverage.

If Central converts today's 3.06% NIM and 46.61% CASA into:

• Cost-to-income around 50%.
• ROA around 1.2%.
• ROE around 17%.

while keeping GNPA and credit cost controlled, the market may reassess the 0.75x book valuation dramatically.

What would make Bank of India remain the stronger risk-adjusted choice?

BOI needs much less transformation.

It needs current progress to remain current.

The confirmation signals are:

• Loan growth remains 14%-16% after normalisation.
• Credit cost stays below 0.5%.
• GNPA remains below 2%.
• ROA remains above 1%.
• Cost-to-income remains below 48%.

Bank of India vs Central Bank FAQs

Which bank is larger?

Bank of India by roughly two times on deposits and advances.

Which is growing loans faster?

Central Bank of India, around 28.58% versus Bank of India at 18.64%.

Which has higher CASA?

Central Bank, approximately 46.61% versus Bank of India at 36.68%.

Which has higher NIM?

Central Bank at approximately 3.06% versus Bank of India at 2.52%.

Which has higher ROA?

They are essentially tied: Bank of India at 1.01% and Central Bank around 1.00%.

Which has higher ROE?

Bank of India, approximately 16.12% versus Central Bank at 14.92%.

Which has lower GNPA?

Bank of India at 1.81% versus Central Bank at 2.60%.

Which has lower NNPA?

Central Bank marginally, approximately 0.49% versus Bank of India at 0.51%.

Which has lower credit cost?

Bank of India by a wide margin, around 0.15% versus Central Bank at 0.40%.

Which has better operating efficiency?

Bank of India, with cost-to-income around 46.33% versus Central Bank at 55.40%.

Which stock is cheaper?

Bank of India is cheaper on late-August P/E. Central Bank is marginally cheaper on P/B.

Where can investors compare them on Bull Run?

Use the Bank of India stock page, Central Bank stock page and Public Sector Bank sector page.

Research sources

• Bull Run — Bank of India
• Bull Run — Central Bank of India
• Bull Run — Public Sector Bank sector research
• Bank of India official financial results
• Central Bank of India official Q1 FY2027 results
• Central Bank official analyst presentation
• Bank of India late-August valuation data
• Central Bank late-August valuation data