After witnessing a choppy session, the S&P BSE Sensex went up by over 150 points in late afternoon trade ahead of the US Federal Reserve meet.
According to analysts, the market is expecting Ben Bernanke to announce a $10 billion reduction in monthly purchases, bringing the monthly total to $75 billion.
The 30-share index was at 19,963.02, up 158.99 points or 0.81 per cent. It touched a high of 19,965.71 and a low of 19,775.29 in trade today.
The Nifty was at 5,897.65, up 49.25 points or 0.84 per cent. It touched a high of 5,902.85 and a low of 5,840.20 in trade today.