Mumbai, May 18 -- Key equity benchmarks staged a sharp intraday recovery on Monday, with the Sensex rebounding nearly 1,130 points from the day's low to close marginally higher, supported by value buying, gains in IT stocks and easing volatility. The Nifty ended near the 23,650 mark despite weakness in broader markets, PSU banks stocks and consumer durables. IT shares advanced as a stronger US dollar improved earnings outlook for exporters, while pharma stocks also supported sentiment after Gland Pharma surged on strong quarterly earnings. The recovery was aided by hopes of easing US-Iran tensions, although concerns over elevated crude oil prices, rising US bond yields and persistent geopolitical risks continued to keep investor sentiment...