Volatility ruled as the key benchmark indices reversed their initial direction.
The Sensex resumed higher at 26,814.31 and firmed up further to 26,827.06 on initial buying. But it declined immediately to 26,588.70 before trading at 26,615.75 at 1145 hours, a loss of 152.71 points, or 0.57 per cent, from its last close.
The 50-share NSE Nifty also moved down 51.20 points, or 0.63 per cent, to 8,063.50 at 1145 hours.
Foreign portfolio investors (FPIs) net sold shares worth Rs 550.29 crore last Friday, according to provisional stock exchange data while domestic institutional investors (DIIs) net bought shares worth Rs 879.50 crore.
Meanwhile, the Reserve Bank of India (RBI) is scheduled to announce current account deficit (CAD) data for the fourth quarter of 2014-15 today.
Asian stocks were a mixed bag today as key benchmark indices in China, Hong Kong, Taiwan and Japan rose up to 0.9 per cent while indices in Singapore, Indonesia and South Korea fell up to 1.02 per cent.