Nomura analysts have turned cautious on public sector banks (PSUs) after they outperformed private banks by 34% over the past year. The Nifty PSU Bank index rose 32%, while the Nifty Private Bank index saw a 2% decline. Analysts cite four key reasons for recommending a shift towards large private banks: sustainability of growth, earnings quality, leverage risks, and valuation support. While PSU banks have improved their loan growth, they have not matched this with deposit growth, leading to a loss of market share. Nomura notes that much of PSU credit growth has been funded by reducing statutory liquidity ratio (SLR) buffers. Additionally, the profitability of PSU banks relies heavily on treasury gains and recoveries from written-off loans, unlike private banks that have more stable core income. The analysts also highlight that PSU banks operate with higher leverage, making them more vulnerable to credit cost increases. In terms of valuations, private banks are trading at historic lows, presenting a more compelling investment opportunity. Nomura recommends large private banks such as HDFC Bank, Axis Bank, and Kotak Mahindra Bank as top picks, while also mentioning State Bank of India and Bank of Baroda within the PSU category.