The 30-share barometer, after gaining 68 points in the previous session, tumbled 455.10 points, or 2.25 per cent to 19,760.30. This is its biggest daily loss since March 2012.
HDFC, HDFC Bank and ICICI Bank fell in 3-4 per cent range. Heavyweights ITC and RIL dropped by over 3.5 per cent each. L&T, SBI, ONGC and Sun Pharma also witnessed selling.
Similarly, the NSE index Nifty plunged by 138.10 points, or 2.26 percent to 5,985.95. MCX-SX flagship index, SX40 today closed 258.98 points lower, or 2.16 per cent, at 11731.91.
Belying hopes of further rate cuts, the Reserve Bank Governor D Subbarao's comments that there are still upside risks to inflation spooked stock markets. Additionally, RBI's concern about widening country's current account deficit amid rupee falling to over 10-month lows, also put pressure.
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Pulled down by poor performance of farm, manufacturing and mining sectors, economic growth slowed to 4.8 per cent in the January-March quarter and fell to a decade's low of 5 per cent for the entire 2012-13 fiscal.
The realty sector index suffered the most by losing 3.38 per cent to 1,684.92 as DLF fell 5.41 per cent to Rs 194.85, its lowest in more than 8 months after its first quarterly loss since at least 2007. Oil and gas index was second worst performer by falling 2.71 per cent to 8,654.79 as the energy major Reliance Industries tumbled 3.62 per cent to Rs 805.60.