LIVE market updates: The Indian benchmark indices extended the losses and trading at day’s low with Nifty below 17,750. The Sensex was down over 600 points at 59,492. The Nifty was down 150 points, just above the 17,700-mark. Coal India, Power Grid, NTPC, IOC and BPCL were the top gainers, while HCL Tech, Infosys, Wipro, Bajaj Finance were the laggards.