Sensex settled at 77,664, down 852 points or 1.09 per cent, while Nifty closed at 24,173, losing 205 points or 0.84 per cent as selling pressure intensified across auto, banking, IT and realty stocks. Major laggards included Tech Mahindra, Infosys, Tata Motors Passenger Vehicles (TMPV), Mahindra & Mahindra, Eicher Motors, HDFC Bank and ICICI Bank.