The BSE benchmark index dropped once again to a low of 15,645 and finally ended at 15,695 -- down 163 points.
Nifty ended down 46 points at 4,710.
For the week ended November 25, the Sensex and the Nifty were both down nearly 4% each.
Thursday, foreign institutional investors sold equities worth Rs 1,636 crore, as per the data available on NSE.
Asian markets slipped as the Euro fell to seven-week lows.
Investors took to selling safer assets such as gold and government bonds in Japan, as doubts continued to plague the market on the Euro Zone debt crisis.
On Thursday, euro zone's three biggest nations ruled out calling on the European Central Bank to intervene and help tackle region's sovereign debt crisis. Nikkei ended flat at 8,160. Hang Seng, Taiwan Weighted, Straits Times and Seoul Composite slumped around 1% each.
In Europe, key share markets such as FTSE-100, CAC-40 and DAX were all trading lower.
The Union Cabinet allowed 51% and 100% FDI in multi-brand and single-brand retail, respectively.
The decision was taken by the cabinet in a meeting later on Thursday amid protests from UPA allies, cleared the proposal along with a set of stringent riders, which may pose a hurdle to many foreign players. Retail stocks and airline shares surged today on the back of this news.
Auto and metal shares were the top losers in the Sensex. HIndalco ended down 3.7%, Sterlite INdustries fell 3.3% and Tata Steel eased 2.8%. In the auto pack Maruti eased 3.9% and Hero Motocorp ended down 2.7%.
V2 Retail, Pantaloon Retail, Store One Retail and Trent were up 8-20% each. On Thursday, too, these jumped by as much as 14%. Shares of airline companies such as Jet Airways, SpiceJet and Kingfisher, surged 7-13% each on hopes that the government may allow foreign airlines to invest in the domestic sector.
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