The NSE Nifty too plunged headlong as it went below the 7,600-mark by falling 172.70 points, or 2.23 percent, on massive selling across sectors.

Realty, infrastructure, auto, metal and capital goods were among the worst hit as investors got anxious amid a global sell-off. Power, PSU, oil and gas and banking shares also came under pressure.

The 30-share BSE index resumed the day sharply lower in line with the global sell-off and remained weak throughout as selling intensified. The gauge ended with a steep fall of 554.50 points, or 2.18 per cent, at 24,851.83, its lowest closing since June 4, 2014, when it closed at 24,805.83.

Intra-day, it hit a session's low of 24,825.70. The Sensex has now lost 1,309.07 points in four straight sessions.

Asian markets were in deep red, with Shanghai shares crashing 7.32 percent, forcing authorities to suspend trading less than half an hour after opening as the new circuit-breaker tripped for the second time in a week.

The fall came amid worries over a slowing growth in the world's second-largest economy, which has roiled investors worldwide, and pressure on its currency from capital outflows. China's central bank today lowered the yuan against the US dollar by 0.51 per cent to 6.5646, the lowest since March 2011.

After getting below the 7,600-mark, the NSE Nifty touched the day's low of 7,556.60 before settling at 7,568.30, a sharp fall of 172.70 points, or 2.23 percent.

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