Mumbai, Aug 22 (PTI): Equity benchmark indices Sensex and Nifty fell sharply by nearly 1 per cent on Friday, snapping their six-day winning streak, as investors turned cautious ahead of US Fed Chair Jerome Powell's Jackson Hole address amid growing global trade uncertainties triggered by Trump tariffs.
Intense selling in market heavyweights HDFC Bank and Reliance Industries also dampened risk appetite, traders said.
The 30-share BSE Sensex tumbled 693.86 points or 0.85 per cent to settle at 81,306.85. During the day, it plunged 708.94 points or 0.86 per cent to 81,291.77.

As many as 2,316 stocks declined while 1,765 advanced and 159 remained unchanged on the BSE.
The 50-share NSE Nifty dropped 213.65 points or 0.85 per cent to 24,870.10.
On the weekly front, the BSE benchmark jumped 709.19 points or 0.87 per cent, and the Nifty climbed 238.8 points or 0.96 per cent.
"Markets snapped a six-session winning streak and ended lower, losing nearly a per cent as sentiment turned weak from the outset and deteriorated further in the latter half.
"The weakness was primarily driven by caution ahead of US Fed Chair Jerome Powell’s Jackson Hole address and renewed concerns around global trade and geopolitical tensions, which dampened risk appetite. Domestic profit-booking after the recent rally and a pause in fresh FPI inflows further weighed on sentiment," Ajit Mishra - SVP, Research, Religare Broking Ltd, said.
From the Sensex pack, Asian Paints, UltraTech Cement, Tata Steel, ITC, HCL Tech, Kotak Mahindra Bank, Adani Ports, Tata Consultancy Services, HDFC Bank and Tech Mahindra were among the major laggards.
However, Mahindra & Mahindra, Maruti, Bharat Electronics and Sun Pharma were among the gainers.
The BSE smallcap gauge declined 0.35 per cent, and the midcap index dipped 0.23 per cent.
Among BSE sectoral indices, metal tanked 1.27 per cent, commodities (1.08 per cent), bankex (1.06 per cent), financial services (0.84 per cent), oil & gas (0.80 per cent), BSE Focused IT (0.77 per cent) and IT (0.77 per cent).
BSE Healthcare, telecommunication and capital goods were the gainers.
"Market sentiment turned cautious as profit-booking set in after a strong six-day rally driven by GST reform optimism and an S&P rating upgrade. Investors also awaited Powell’s comments, which could influence September's Fed policy direction. Adding to the pressure were concerns over the August 27 deadline for additional US tariffs on Indian goods," Gaurav Garg, Analyst, Lemonn Markets Desk, said.
In the six-day rally to Thursday, the BSE benchmark has climbed 1,765 points or 2.14 per cent, and the Nifty rallied 596 points or 2.4 per cent.
In Asian markets, South Korea's Kospi, Japan's Nikkei 225 index, Shanghai's SSE Composite index and Hong Kong's Hang Seng settled in positive territory.
Markets in Europe were trading in the green in mid-session deals.
The US markets ended lower on Thursday.
Foreign Institutional Investors (FIIs) bought equities worth Rs 1,246.51 crore on Thursday, according to exchange data.
Global oil benchmark Brent crude dipped 0.24 per cent to USD 67.52 a barrel.
On Thursday, the Sensex climbed 142.87 points or 0.17 per cent to settle at 82,000.71. The Nifty rose by 33.20 points or 0.13 per cent to 25,083.75.


Let the Truth be known. If you read VB and like VB, please be a VB Supporter and Help us deliver the Truth to one and all.
New Delhi (PTI): A group of 345 Indian fishermen, who were stranded in Iran amid escalating regional tensions, returned to India via Armenia on Saturday, officials said.
External Affairs Minister S Jaishankar thanked his Armenian counterpart Ararat Mirzoyan for assistance in return of the Indian nationals.
The Indian nationals arrived in Chennai this evening, the officials cited above said.
The circumstances that led to them being stranded in Iran were not immediately known.
"Thank FM @AraratMirzoyan and the Government of Armenia for facilitating the evacuation of Indian fishermen today from Iran, through Armenia to India," Jaishankar said on social media.
Over 1,500 Indian nationals have left Iran through land border crossings in Armenia and Azerbaijan since the start of the West Asia conflict over a month ago.
"A group of Indian fishermen, stranded in Iran, are returning home via Armenia today; their flight is expected to reach India this evening," a government statement said.
It said the Ministry of External Affairs continues to closely monitor the evolving situation in the West Asian region, with the safety, security and welfare of the Indian community being accorded the highest priority.
It also made a mention of five Indians being injured in Abu Dhabi on Friday.
According to Abu Dhabi authorities, the Indian nationals were among the 12 people injured by debris from an intercepted missile.
"In an attack in Abu Dhabi, five Indian nationals were injured; four have been discharged, one remains under treatment," the Indian government's statement said.
It said the Indian mission in Abu Dhabi is extending "full" assistance and coordinating with local authorities, adding that their flight is expected to reach India this evening.
