The Nifty PSU Bank Index is a specialised sectoral index maintained by NSE Indices Limited comprising the publicly listed Public Sector Undertaking (PSU) banks — government-owned banks where the Government of India holds a majority stake — providing investors with a focused benchmark for tracking the performance of India's public sector banking system. The index includes major PSU banks such as State Bank of India (SBI), Punjab National Bank, Bank of Baroda, Canara Bank, Union Bank of India, Indian Bank, and Bank of Maharashtra. PSU bank stocks are characterised by their sensitivity to government policy decisions — recapitalisation announcements, disinvestment plans, NPA recognition norms, and priority sector lending mandates — alongside the conventional banking sector factors of credit growth, NIM trends, and asset quality. The Nifty PSU Bank Index experienced sharp outperformance between 2021 and 2024 as PSU bank asset quality improved dramatically following the IBC resolution cycle, recapitalisation investments by the government, and the general credit quality improvement in the post-COVID recovery. For investors, the Nifty PSU Bank Index ETFs and index funds provide a transparent, low-cost way to capture the PSU banking sector's performance — useful for those with a view on government-led banking sector reform, disinvestment potential upside, or the credit cycle recovery thesis. PSU bank valuations are typically at a discount to private sector banking peers on P/B multiples — reflecting governance concerns, political lending directives, and structurally lower return on equity.