New Delhi, July 17 -- Stock market benchmark Sensex surged over 800 points in intraday deals on Friday, 17 July, powered by index heavyweights Reliance Industries, HDFC Bank, and ICICI Bank, even as mid and small-cap segments remained under pressure amid escalating US-Iran tensions and higher crude oil prices.

Sensex jumped over 850 points, or more than 1%, to an intraday high of 78,045, while Nifty 50 jumped over 200 points, or nearly 1%, to reclaim 24,298 during the session.

On the other hand, the Nifty Midcap 100 and Smallcap 100 indices dropped up to 1% during the session.

The outperformance of benchmark indices can be attributed to the expectations of stellar Q1 results from index heavyweights, including Reliance Industries, HDFC ...