**Bank Nifty** (Nifty Bank) is a stock market index on the **National Stock Exchange of India (NSE)** that represents the performance of the banking sector. It consists of the **12 most liquid and large-cap banking stocks** from both **public and private sector banks**. The index serves as a benchmark for banking sector performance and is widely used for trading in futures and options. Major components of Bank Nifty include **HDFC Bank, ICICI Bank, State Bank of India (SBI), Axis Bank, Kotak Mahindra Bank, IndusInd Bank**, and others. The index is highly volatile and sensitive to economic, monetary policy, and banking sector developments.