The 30-share barometer plunged by 588.15 points, or 2.11 per cent, to 27,254.17 with all sectoral indices led by auto, IT, realty and capital goods, trading in negative zone with losses up to 2.42 per cent.
The index had lost 45.58 points in the previous session.
On similar lines, the National Stock Exchange index Nifty slipped below the 8,300-mark by falling 174.40 points, or 2.08 per cent, to 8,204.
Globally, US oil prices finished at USD 50.04 per barrel, down five per cent, after sliding below USD 50 a barrel earlier in yesterday's trade.
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Prominent losers among the 30 Sensex stocks were Tata Motors, ONGC, GAIL, HDFC Ltd, HDFC Bank, Hero Moto, Infosys, L&T, Maruti Suzuki, RIL, SBI, Sesa Sterlite, Sun Pharma, Tata Power, Tata Steel, TCS and Wipro.
Among other Asian markets, Hong Kong's Hang Seng index was down by 0.87 per cent, while Japan's Nikkei fell 2.62 per cent in early trade today.