Frenzied selling in heavyweights across the sectors by foreign institutional investors and domestic players put immense pressure on the benchmark Nifty, which crumbled by a whopping 189.05 points, or 3.45 per cent, to end at 5,287.45 on the National Stock Exchange (NSE).
The domestic unit fell below 66-mark to the dollar despite Government's slew of measures, rattling investors.
The market opened down in the backdrop of sliding rupee and remained under selling pressure ahead of F&O contract expiry later this week. Sentiment got spooked in afternoon following the further fall in rupee, which hit fresh life-time low against dollar, triggering panic on bourses.
Markets are likely to see further downside as GDP data for the April-June quarter is expected on Friday and investors are cautious in the midst of deepening slowdown, they said.
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Today's sell-off was not India-specific as currencies and equities in emerging markets too came under selling on heightened fears over a possible US intervention in Syria amid uncertainty over Fed tapering its stimulus measures.
The selling was so ferocious that most of the sectoral indices ended with huge losses. Financial stocks bore the brunt of the sell-off followed by FMCG, energy, healthcare, auto, metal and infra counters.
IDFC, BHEL, IndusInd Bank, JP Associates, HDFC Bank, HDFC, Axis Bank, RInfra, Ranbaxy and ACC were the key losers. Few gainers included Infosys, Dr Reddy's and HCL Tech.