New Delhi, June 5 -- Indian stock market witnessed a broad-based buying, which lifted Indian stock market benchmarks-the Sensex and the Nifty 50-by more than 1 per cent each in intraday trade on Thursday, June 5.

The Sensex opened at 81,196.08 against its previous close of 80,998.25 and jumped over 900 points, or 1 per cent, to an intraday high of 81,911.13. The Nifty 50 opened at 24,691.20 against its previous close of 24,620.20 and jumped over a per cent to an intraday high of 24,899.85.

The BSE Midcap and Smallcap indices also rose by almost a per cent.

The overall market capitalisation of firms listed on the BSE rose to nearly Rs.449 lakh crore from Rs.445 lakh crore in the previous session, making investors richer by about Rs.4 la...