Slumping for the fourth straight session, equity benchmark Sensex plunged 667 points on Monday following a selloff in index-heavyweights Reliance Industries, HDFC twins and Kotak Bank as soaring COVID-19 cases kept investors jittery.
The rupee too sank 20 paise and settled below the 75 per US dollar mark.
The BSE Sensex ended 667.29 points or 1.77 per cent lower at 36,939.60, while the NSE Nifty tumbled 181.85 points or 1.64 per cent to 10,891.60.
Kotak Bank was the top loser in the Sensex pack, falling over 4 per cent, followed by IndusInd Bank, Axis Bank, ONGC, HDFC Bank, Bajaj Auto and Reliance Industries (RIL).
On the other hand, Titan, Tata Steel, HCL Tech, L&T and SBI were among the gainers.
According to traders, massive selling in index majors RIL and HDFC duo dragged the key indices lower.
Further, foreign fund outflows and concerns over rise in COVID-19 cases across the world kept investors on edge, they added.
The number of cases around the world linked to COVID-19 has crossed 1.8 crore, while the infection count in India has crossed 18 lakh.
Asian shares were mixed on Monday as investors eyeballed surging coronavirus cases in the region.
US Secretary of State Mike Pompeo's weekend comments that President Donald Trump plans to take action on a what he sees as a broad array of national security risks presented by software connected to the Chinese Communist Party adding to market jitters.
Pompeo's remarks followed reports that Microsoft is in advanced talks to buy the U.S. operations of TikTok, which is owned by the Chinese company ByteDance and is seen as a source of national security and censorship concerns by the Trump administration.
Japan's benchmark Nikkei 225 gained 1.9% to 22,123.93. Australia's S&P/ASX 200 edged up 0.3% to 5,946.70. South Korea's Kospi slipped 0.1% to 2,247.00. Hong Kong's Hang Seng dropped 0.8% to 24,400.12, while the Shanghai Composite index jumped 1.3% to 3,352.07.
"Between the increased growth concerns and the big tech surprises from Wall Street last week, Asia markets are set for mixed movements into Monday morning," said Jingyi Pan, market strategist at IG in Singapore, referring to the U.S. rally that closed last week's trading.
Investors were also watching the Caixin manufacturing Purchasing Manager's Index, a private survey which showed China's manufacturing activity grew in July.
On Friday, Wall Street closed outs its fourth straight winning month, riding on Big Tech shares continuing to steamroll through the pandemic. The S&P 500 rose 24.90 points, or 0.8%, to 3,271.12 following blowout profit reports from Apple and several other tech titans.
The Dow Jones Industrial Average was down as many as 300 points before finishing the day up 114.67, or 0.4%, at 26,428.32. The Nasdaq composite jumped 157.64, or 1.5%, to 10,745.27 on the strength for tech stocks, which also accelerated in the last hour of trading.
Despite the gains, caution was apparent across markets as the coronavirus pandemic clouds the global economic outlook.
The U.S. economy cratered to its worst quarterly performance on record during the spring, and worries are high that continuing waves of coronavirus infections may halt what had been a budding recovery.
Over the weekend, the Philippines reported its confirmed caseload had surpassed 100,000, and authorities ordered a renewed lockdown.
The premier of Australia's Victoria state, Daniel Andrews, said a "state of disaster" had been imposed in the Australian state among sweeping new coronavirus-related restrictions to be imposed across Melbourne and the region from Sunday night.
That included an 8 p.m. to 5 a.m. curfew beginning Sunday night. Andrews said the state of disaster proclamation gave police greater power.
Japan's second revised real gross domestic product data for January-March, released Monday, showed the world's third largest economy shrank at an annual rate of 2.2%.
The annual pace gives what the rate would have been when the pace for the quarter is continued for a year. The contraction for the quarter was minus 0.6%.
Confirmed coronavirus cases have been surging recently across Japan, especially in urban areas like Tokyo and Fukuoka, raising worries people weren't staying home or social distancing enough.
Critics say the government has been sending out conflicting messages, encouraging people to travel and spend with a "GoTo" campaign offering discounts at hotels and resorts while also saying they should avoid unnecessary risks.
Benchmark US crude oil lost 30 cents to $40.27 a barrel in electronic trading on the New York Mercantile Exchange. It rose 35 cents to settle at $40.27 a barrel on Friday. Brent crude fell 25 cents to $43.27 a barrel.
The U.S. dollar fell to 105.84 Japanese yen from 105.90 yen on Friday. The euro inched down to $1.1771 from $1.1779.
(With inputs from AP and PTI)
