The Bombay Stock Exchange benchmark Sensex on Wednesday jumped by 
The 30-share barometer rose by 484.54 poins to 20,687.88 points, its best closing level since January 2008.
The wide-based National Stock Exchange index Nifty added 143 points to close at 6,233.90 points.
The market remained in bull orbit as foreign investors bought more shares than they sold for the 29th straight day after reports from China, Japan and Australia signaled that the global economic recovery is strengthening, brokers said.
They added that expectations of strong corporate earnings by leading companies beginning from this week-end also boosted the sentiment.
The market received further support following a firming trend in the Asian region and higher opening in Europe after the US Federal Reserve hinted that it may provide more stimulus measures.
The oil major and trend setter Reliance Industries and second heaviest software exporter Infosys Technologies spurted. The two carry nearly 23 per cent weightage on the index.
In the 30-BSE index components, 28 stocks closed with gains and NTPC declined, while Cipla Ltd ended at last level.