The NSE Nifty barometer ended with a loss of 25.25 points at 8,102.10 -- also its weakest close since December 17, 2014.
Despite positive closing in Asian indices and rebound in European shares, domestic markets buckled under selling by foreign funds as global crude oil prices continued to fall.
TCS, Tata Motors, ITC, ICICI Bank and Hindalco were among key Sensex constituents that fell between 1-3 per cent today.
Concerns over global growth following slide in crude oil prices below USD 50 per barrel level and possible exit of Greece from Euro region kept investors jittery.
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The BSE 30-share Sensex resumed stable and moved erratically in a range of 275 points before concluding at 26,908.82 -- a fall of 78.64 points or 0.29 per cent. Yesterday, it had plunged by 854.86 points, or 3.07 per cent, its biggest fall in five and a half years.
Wednesday is the third straight session of decline with the Sensex having lost 980 points in this period.
The 50-issue CNX Nifty of the NSE also moved down further by 25.25 points, or 0.31 per cent, to 8,102.10. It had logged day's low of 8,065.45 but recovered then some ground.
Provisional data from stock exchanges showed that foreigners sold shares worth a net Rs 1,570.76 crore yesterday.