Mumbai: The Indian equity indices opened on a positive note on Monday with the BSE Sensex surging over 800 points.Also Read - Sensex Bounces Back: Rises Over 1,400 Points, Nifty Reclaims 16200 | Media, Metal, Realty Stocks Rally

Healthy buying was witnessed in auto, banking, finance and IT stocks. Also Read - Closing Bell: Sensex Falls Over 1,400 Points Amid Global Sell-Off; Nifty Falls To 15,800

Around 9.50 a.m., Sensex was trading at 49,886.82, higher by 786.83 points or 1.60 per cent from its previous close of 49,099.99. Also Read - Sensex Closes 1,344 Points Higher, Nifty Above 16,200; LIC Closes 8 Per Cent Below Share Price

After a gap-up opening at 49,747.71, it surged as high as 819 points to touch an intra-day high of 49,919.34.

The Nifty50 on the National Stock Exchange was trading at 14,756.05, higher by 226.90 points or 1.56 per cent from its previous close.

The top gainers on the Sensex were Mahindra & Mahindra, Tech Mahindra and Power Grid, while the only loser was Bharti Airtel.