The broader 50-share Nifty also tanked 219 points to end below 8,300 level. Both the indices closed at their two-month lows. Global stock markets tumbled after a survey showed Chinese factory activity contracted at their fastest pace since the depth of the global financial crisis in 2009.
Sharp erosion of rupee value amidst emerging market currency volatility following China's yuan devaluation and downgrading the country's GDP growth target to 7 per cent by Moody's, mainly contributed towards grim market mood.

Widening trade deficit in the face of sluggish exports as well as lack of progress in GST Bill in the monsoon session of Parliament, and absence of any positive earnings also added to the downtrend.
On the macro front, India's exports narrowed for the eighth straight month by 10.3 per cent in July to USD 23.13 billion, widening the trade deficit to USD 12.81 billion.
Earlier, on Tuesday, Moody's revised its growth outlook to 7 per cent for the year, citing monsoon deficit worries and concerns over stalemate in the reform process.
Even though the market rallied on Wednesday, largely outperforming its Asian peers, it remained under intense selling pressure rest of the days.
However, the much-awaited clarity on FIIs' liability to pay MAT led some recovery towards the fag-end trade, but the damage was already done.
In a big relief to FIIs, government-appointed committee on MAT recommended that there was no case for imposing the controversial minimum alternate tax (MAT) on FIIs retrospectively, a suggestion that the government is said to be "favourably" considering.

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