Sensex Nifty Today March 31 2026 — Market Closes Q1, Watch These Key Stocks

March 31 is the last trading day of Q1 FY2026. Sensex and Nifty outlook for today — FII data, F&O expiry, key resistance levels and stocks to watch including Reliance, HDFC Bank and Infosys.

Today is the last trading session of Q1 FY2026 which means institutional rebalancing, mutual fund NAV adjustments and heavy derivative settlement flows. Nifty 50 has been under pressure for 5 straight weeks following the Pakistan-India border tension in late February which triggered FII outflows of over ₹28,000 crore in March alone. Nifty Bank is down approximately 16% from its February 28 peak.

Key levels to watch today — Nifty 50: Support at 21,800, resistance at 22,400. Nifty Bank: Support at 46,200, resistance at 47,800. Sensex: Critical support at 72,000. A close above these levels would signal short-term stabilization. Monthly F&O contracts expire today which typically causes elevated intraday volatility especially between 3:00 PM and 3:30 PM IST.

Top stocks on radar today: Reliance Industries (Q4 refining margins data due), HDFC Bank (FII buying pattern resuming per NSDL data), Infosys (revenue guidance update expected), Metal stocks — Nalco, Hindalco, Vedanta have rallied 4–7% this week as global aluminium prices firm up. Avoid heavy positions today due to expiry-day volatility.

FII vs DII data from March 30: FIIs net sold ₹1,847 crore. DIIs net bought ₹2,390 crore — domestic institutions continuing to absorb FII selling pressure. Retail SIP inflows remain strong at ₹23,400 crore for March according to AMFI preliminary data.