Investors lost another Rs 1 lakh crore in today's trade after markets started tumbling after noon.
Enthused by RBI's overnight measures to ease liquidity situation, the Sensex had begun the day on a positive note and jumped over 321 points to 18,567.70.
However, as rupee started its southward journey, stocks fell. Led by losses in metal, oil&gas, FMCG and heathcare stocks, Sensex plunged by 340.13, or 1.85 per cent, to 17,905.91 -- a level last seen on September 11, 2012.
On similar lines, the broad-based National Stock Exchange index Nifty dropped by 98.90 points, or 1.83 per cent to 5,302.55 as companies having exposure to overseas markets such as IT and pharma suffered losses.
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Also, SX40 index, the flagship index of MCX-SX closed at 10,618.44, down 211.32 points or 1.95 per cent.
"The market is factoring in the negatives that can arise not only on the macro front but also at the corporate level due to the rising USD/INR rates," said Nagji K Rita, Chairman & MD, Inventure Growth and Securities.
Brokers said market sentiment dampened as government efforts failed to revive the free-fall in rupee which went past 64.5 in intra-day trade on increased capital outflows.
They said world stock markets remaining choppy as traders waited for hints from the US central bank about when it might begin to reduce its massive stimulus effort in the soon-to-be-released minutes of its July meeting.
Overseas funds sold a net USD 105 million of local shares in the previous session, the most since July 12, paring this year's inflow to USD 12.4 billion.