Indian banks posted strong growth in the first half of FY27, with deposits rising 17.70% and credit expanding 19.09% year-on-year. This surge was largely supported by the RBI’s special foreign currency swap window, which brought in $133 billion. Investors should watch how banks manage profit margins, as uneven interest rate changes between deposits and loans may pressure bottom lines.
The Indian banking sector experienced a significant acceleration in activity during the first half of the 2027 financial year. Official data shows that scheduled banks recorded a 17.70% rise in total deposits and a 19.09% expansion in advances compared to the same period last year. This performance stands in sharp contrast to the previous year, when growth rates for deposits and advances were much lower, at 9.93% and 11.27% respectively.
A primary catalyst for this liquidity boost was the Reserve Bank of India’s (RBI) special foreign currency swap window. Introduced on June 5, 2026, this facility was designed to attract foreign capital by offering favorable hedging costs to banks for 3-5 year deposits. Between June and August 2026 alone, the banking system successfully mobilized $133 billion through this initiative. This influx of capital has helped banks strengthen their balance sheets and support broader credit demand across the economy.
Despite the strong growth numbers, the banking sector faces important challenges regarding profitability. A key issue is the uneven transmission of interest rates. While banks have been aggressive in hiking interest rates on deposits to attract customers, the rates on loans have not risen at the same pace. This gap creates a squeeze on Net Interest Margins (NIM), which represents the core profitability of a lender. Investors may want to monitor whether banks can pass on these costs to borrowers in the coming quarters without hurting demand.
Furthermore, the Reserve Bank has highlighted that attractive interest rates on government-backed small savings schemes could continue to pull liquidity away from the banking system, potentially forcing banks to keep deposit rates high. The credit-deposit gap, which measures the difference between lending and deposit growth, stood at 81 basis points as of mid-September 2026. While this is a slight improvement from the 89 basis points recorded a year ago, it remains a critical metric for gauging the liquidity health of individual lenders.
Looking ahead, the focus for investors will be on how effectively banks deploy the funds raised through the FCNR(B) swap window. The ability to balance credit growth with stable profit margins will likely determine the earnings quality for the remainder of the fiscal year.