During the week, the Sensex fell 1,216.89 points -- this year's biggest weekly drop.
After rising to the day's high of 29,183.76 in morning trade following passage of Insurance Bill in Parliament, the Sensex slipped into the negative zone. As participants focussed on retail inflation that rose to three month high of 5.37 per cent in February, up from 5.19 percent in January, rate-sensitive shares were hit.
"The uptick in food inflation could continue into March with rain disruptions over last month causing some short term flare ups....Given the limited room to manoeuvre and RBI's challenging task of taking CPI inflation down to 4 per cent by early 2018, the central bank can ill afford to cut policy rates aggressively from here," said Pranjul Bhandari, Chief India Economist, HSBC.
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The NSE Nifty, which breached the 8,800-level to touch the day's high of 8,849.75 at the outset, succumbed to broad-based selling. It then touched a low of 8,631.75 before settling down 128.25 points, or 1.46 per cent, at 8,647.75.
Major losers that dragged down the key indices were BHEL, L&T, Bajaj Auto, Wipro, Axis Bank, Hindalco, ICICI Bank, Sun Pharma, Tata Steel, SBI, Tata Power and Sesa Sterlite. Among 30 Sensex components, 27 stocks ended down while Bharti Airtel, ONGC and NTPC gained.
The BSE Small Cap index ended 1.54 per cent lower while Mid-cap index shed 1.37 per cent.
Bucking the trend, DLF scrip zoomed over 5 per cent after the SAT today quashed a SEBI order that had barred the company from capital markets for 3 years.
Provisional data showed Foreign Portfolio Investors bought shares worth net Rs 733.09 crore yesterday.