Sensex climbed 566.96 points to 84,778.84, while Nifty advanced 170.9 points to 25,966.05 on Monday. Nifty MidCap rose 0.93% and SmallCap 0.82%. PSU Bank, Realty, Metal, and Oil & Gas indices gained over 1% each. Top gainers included Bharti Airtel and SBI, while Kotak Bank and Infosys declined.