HDFC Bank Limited

NII accounts for roughly 65-70% of revenues and accrues on a stable, large retail deposit and loan base; retail deposits represented 84% of total deposits in FY2025. HDFC Bank grew revenue every fiscal year from FY2020 through FY2025, including through the COVID period and the post-merger integration years.

Retail advances (mortgages, personal loans, auto) comprised roughly 50% of the loan book in FY2025, commercial and rural banking 32%, and corporate and wholesale 18%, providing reasonable intra-banking diversification. Subsidiaries in insurance, asset management, and securities add supplemental but modest revenue streams.

Essentially all revenues are generated within India; the Dubai DIFC and Bahrain branches are immaterial to consolidated financials, and the Dubai branch was barred from new client onboarding by the DFSA in September 2025 amid the AT-1 investigation. HDFC Bank is structurally a domestic Indian institution with no near-term pathway to material international revenue.

Core banking requires proportional capital deployment for loan growth and a branch-and-people-intensive distribution model, limiting structural operating leverage. Digital platform investments including mobile banking and PayZapp provide some marginal cost efficiency, but the business model does not exhibit the asset-light scaling profile of software or payments businesses.

Net interest income on a diversified retail and commercial loan book, funded by retail-dominant deposits (CASA ratio of 35% in Q4 FY2025), produces a high-quality recurring revenue stream. Fee income from distribution of mutual funds, insurance products, and transaction banking adds further stability; neither stream is easily substituted or highly discretionary for core customers.