The Sensex settled at 78,472.48 in muted trade.Nifty gained 22.55 points or 0.1% to reach 23,750.20.Adani Ports, Mahindra & Mahindra, Maruti, Sun Pharma, Bharti Airtel, and Tata Motors were among the gainers.Foreign Institutional Investors (FIIs) offloaded equities worth ₹2,454.21 crore on Tuesday.