Foreign Institutional Investors (FIIs) bought shares worth Rs 864.35 crore yesterday, as per provisional data from the stock exchanges.
The Sensex resumed lower at 21,736.61 on initial selling, but recovered immediately to a high of 21,913.04 before trading at 21,885.54 at 1015 hrs, showing a gain of 29.32 points, or 0.13 per cent, from its last close.
The NSE Nifty also moved up by 13.60 points, or 0.21 per cent, to 6,530.50 at 1015 hrs.
Key benchmark indices in China, Indonesia, South Korea, Hong Kong, Taiwan, and Japan were up 0.47-1.26 per cent while Singapore's Straits Times fell 0.21 per cent.
Meanwhile, US stocks were mostly higher yesterday amid signs of progress in diplomatic attempts to ease tensions in Ukraine and as investors shrugged off concern over weakness in the Chinese economy.