Good buying was observed in oil and gas, banking and auto sectors, while selling pressure was seen in healthcare sector.
The 30-scrip Sensitive Index (Sensex) of the S&P Bombay Stock Exchange (BSE), which opened at 27,048.15 points, was trading at 27,033.36 points (at 9.15 a.m.) in the early session, up 37.49 points or 0.14 percent from the previous day's close at 26,995.87 points.
The Sensex touched a high of 27,059.60 points and a low of 27,031.48 points in the trade so far.
The S&P BSE oil and gas index gained 41.09 points, bankex moved up by 35.22 points and auto index went up by 26.84 points. However, healthcare index dropped by 17.01 points.
The wider 50-scrip Nifty of the National Stock Exchange (NSE) also was trading flat at 11.10 points or 0.14 percent up at 8,096.80 points.