ICICI Bank: How India's Second-Largest Private Bank Rewrote Its Own Story

ICICI Bank's story between 2018 and 2025 is one of the most dramatic institutional turnarounds in Indian banking history. When Sandeep Bakhshi took over as MD & CEO in October 2018, the bank had a gross NPA ratio above 8%, a credit cost that was consuming profits, a reputation problem following the Chanda Kochhar controversy, and a stock that had significantly underperformed HDFC Bank for a decade. By FY25, ICICI Bank had posted a net profit of approximately ₹46,000 crore, achieved a GNPA ratio below 2%, and built a digital banking platform — iMobile Pay — that had crossed 75 million registered users. The stock had compounded at over 22% CAGR since October 2018.

The Sandeep Bakhshi Playbook: Profitability Over Growth

Bakhshi's core strategic shift was deceptively simple: stop chasing loan book growth and start optimising for risk-adjusted returns. Under the previous regime, ICICI Bank had aggressively lent to large corporate borrowers — infrastructure, power, real estate — sectors that subsequently went into stress. The NPA crisis that followed was not unique to ICICI; it hit PSU banks harder. But ICICI's retail aspirations were obscured by the corporate book mess.

The post-2018 playbook had four pillars. First, aggressively provision and write off legacy corporate stress — even at the cost of near-term profitability. Second, pivot the loan mix toward retail, which carries lower individual ticket size and better collateral. Third, invest heavily in digital channels to reduce cost-to-serve and improve deposit franchise quality. Fourth, return capital discipline — keeping RoA above 1.8% and RoE above 18% as hard internal thresholds.

The Retail Pivot: 60%+ of Loan Book Is Now Retail

As of FY25, retail loans constitute approximately 56-60% of ICICI Bank's total loan book. Home loans, auto loans, personal loans, kisan credit cards, and business banking collectively have lower NPA rates than corporate lending — and individual loan defaults do not cascade the way a single ₹10,000 crore corporate account can. The shift has fundamentally reduced the bank's credit risk concentration. When Adani Group debt came under scrutiny in 2023, ICICI's limited exposure was notably low — a contrast to PSU banks where concentration risk is structural.

• Net profit FY25: ~₹46,000 crore (+15% YoY)
• NIM (Net Interest Margin) FY25: ~4.3-4.5%
• GNPA: declined from 8.1% (FY19) to ~1.9% (FY25)
• ROE: ~18-19% (up from 5-8% in FY19-FY20)
• iMobile Pay users: 75 million+ (FY25)
• Retail loan share: ~58% of total loan book
• Cost-to-income ratio: ~40% (significantly improved from 48%+ in 2018)

Digital Banking: iMobile Pay and the Deposit Franchise

iMobile Pay is ICICI's most underappreciated moat. Unlike a bank app that serves existing customers, iMobile Pay allows any Indian — even those with accounts at other banks — to transact, invest, and borrow via ICICI's digital infrastructure. This positions ICICI as a financial services platform rather than just a bank. With 75 million registered users and growing, iMobile Pay generates low-cost, sticky engagement that reduces the bank's dependence on branch-based deposit gathering — structurally compressing cost-to-acquire.

The deposit franchise matters enormously in banking. ICICI's CASA (Current Account + Savings Account) ratio is approximately 38-41%. A higher CASA ratio means cheaper funding — banks pay 3.5-4% on savings accounts versus 7-8% on fixed deposits. ICICI's improving CASA has directly supported NIM expansion even as the overall rate cycle has turned.

Valuation: Is the Premium Justified?

ICICI Bank trades at approximately 2.8-3.2x book value and 18-22x trailing earnings — a premium to PSU banks but a slight discount to HDFC Bank (3.0-3.5x book). The premium is justified on one key metric: consistency. ICICI Bank has delivered ROE above 18% for five consecutive years — a threshold that signals a sustainably profitable banking franchise. For every ₹100 of equity, it generates ₹18-19 in net profit, funded by a loan book with sub-2% gross NPAs.

The forward investment question is whether ICICI can maintain NIM in a rate-cutting cycle. As RBI eases rates, lending yields compress faster than deposit costs reset — a headwind for all banks. ICICI's retail-heavy mix (home loans are variable rate, auto loans are fixed) creates a slightly different NIM trajectory than a corporate-heavy book. Watch NIM trajectory and slippage ratio (fresh NPA creation) in the next two quarters as the primary monitoring signals.