Sensex, Nifty Give Up Gains Ahead Of Economic Survey Eight of 11 sector gauges compiled by the NSE were trading higher led by the Nifty Private Bank index's nearly 1 per cent gain Updated: January 29, 2021 12:08 pm IST The S&P BSE Sensex and NSE Nifty 50 indexes gave up intraday gains ahead of presentation of the Economic Survey by the Chief Economic Adviser (CEA) Krishnamurthy Subramanian. The Sensex fell as much as 685 points from the day's highest level and Nifty 50 index briefly fell below 13,800. As of 11:56 am, the Sensex was down 28 points at 46,845 and Nifty fell 7 points to 13,810. Government is likely to predict economic growth of 11 per cent in the fiscal year beginning April 1 in its annual economic survey later on Friday, news agency Reuters reported citing a source.