Sensex was down 440.38 points or 0.66% at 66,266.82, and the Nifty was down 118.40 points or 0.60% at 19,659.90. About 1722 shares advanced, 1735 shares declined, and 133 shares unchanged.The top losers on the Nifty were M&M, Tech Mahindra, Tata Consumer Products, Nestle India and Britannia Industries, while gainers were Cipla, Sun Pharma, Divis Labs, Apollo Hospitals and Bharti Airtel.On the sectoral front, auto, oil & gas, bank and FMCG indices down 0.5-1 percent each, while pharma index up 3 percent and realty index up 2 percent.The BSE Midcap index rose 0.5 percent, while Smallcap index ended on a flat note.TO KNOW MORE@ 9917338909