The BSE benchmark Sensex fell 208 points and Infosys tanked over 7 per cent in early trade after Vishal Sikka resigned as MD and CEO with immediate effect.
Besides, weak global due to deadly attack in Spain and rising concerns over the fate of US President Donald Trump's economic agenda also influenced investors sentiment today.
The Sensex plunged by 207.75 points or 0.65 per cent to 31,587.711.
Sectoral indices led by IT, teck, bank, healthcare, metal, auto and realty, tumbling up to 2.43 per cent.
The gauge had gained 581.87 points in the previous three sessions.
Similarly, Nifty dropped by 73.95 points or 0.74 per cent to 9,830.20.
Brokers said sentiment on the domestic bourses suffered a jolt following a meltdown global equities on a deadly attack in Spain and renewed concerns over the fate of US President Donald Trump's economic agenda.
Other laggards that dragged down the key indices were Sun Pharma, HDFC Ltd, Tata Motors, SBI, Kotak Bank, HDFC Bank, Lupin, Adani Ports, Axis Bank, Dr Reddy's, Coal India and Tata Steel.
In Asia, Japan's Nikkei fell 1.02 per cent, while Shanghai Composite Index was quoting 0.33 per cent lower in early trade today. Hong Kong's Hang Seng index too shed 0.82 per cent.
The Dow Jones Industrial Average ended 1.24 per cent lower in yesterday's trade.