Mumbai: Amidst concerns of rise in petro prices and still high annual-inflation, BSE benchmark index Sensex on Monday closed at 194 points lower at 18336 points.

The 30-scrip sensitive index (Sensex) of the Bombay Stock Exchange (BSE), which opened at 18,492.68 points, closed at 18,336.35 points (provisional) down 194.93 points or 1.05 percent from its previous close at 18,531.28 points.

The 50-scrip S&P CNX Nifty of the National Stock Exchange ended at 5,497.35 points, down 0.85 percent.

Broader markets ended weak, with the BSE midcap index closing 0.84 percent down and the BSE smallcap index 0.73 percent down.