The Indian equity benchmarks on Friday extended fall to the fourth straight session due to selling pressure in banking, consumer durables and metal stocks. The 30-share BSE Sensex slumped 427 points or 0.72 per cent to close at 59,037, while the broader NSE Nifty settled 140 points or 0.79 per cent lower at 17,617. During the day, the 30-share BSE index hit an intraday low of 58,621; and Nifty touched a low of 17,486 before limiting some of the losses. Sensex has plunged more than 2,200 points in the last four trading sessions. Both the indexes have tumbled more than 3 per cent, respectively, ...