Indian equity benchmark indices ended sharply lower on Friday after a volatile trading session, as uncertainty surrounding a possible US-Iran understanding triggered heavy selling in the final hour of trade. 

The Sensex closed at 74,775.74, down 1,092.06 points or 1.44 per cent, while the Nifty settled at 23,547.75, declining 359.40 points or 1.50 per cent, reported by PTI.