Nifty and BankNifty are benchmark indices in the Indian stock market. Nifty represents the top 50 companies on the NSE, while BankNifty includes the top banking stocks. These indices are popular among traders due to high liquidity and volatility, making them suitable for intraday and short-term trades. Strategies for trading Nifty/BankNifty include breakout trading, options strategies like straddles/strangles, and trend-following using moving averages or RSI. Key things to watch are open interest buildup, institutional activity (FIIs/DII flows), and macroeconomic announcements. Since Nifty and BankNifty options expire weekly, traders often take advantage of theta decay and implied volatility changes around expiry. BankNifty is known for aggressive moves, while Nifty shows more stability. Mastering these indices requires backtesting strategies, proper position sizing, and real-time news monitoring. Many intraday traders prefer BankNifty due to its sharp directional movement, while positional traders lean towards Nifty for relative predictability.