At 01:30 pm, the S&P BSE Sensex was trading at 29,946, up 33 points, while the broader Nifty50 was ruling at 9,254 up 17 points.
In the broader market, the S&P BSE Smallcap index gained over 1%, while the S&P BSE Midcap was up 0.5%.
The breadth, indicating the overall health of the market, was strong. On the BSE, 1,909 shares rose and 792 shares declined. A total of 122 shares were unchanged.
The monetary policy committee of the Reserve Bank of India (RBI) is likely to leave the repo rate at 6.25%, where it has been since October, a Reuters poll found.
However, investors are expecting the RBI to announce measures to absorb liquidity that has accumulated post demonetisation.
Housing Development Finance Corp dropped as much as 2.25% and was the top Sensex loser.
Among gainers, Shankara Building Products surged as much as 37 percent on its market debut, with its up to 3.45 billion rupees ($52.96 million) IPO oversubscribed more than 41 times.
Shares of Titan Company hit a record high after it said consumer sentiment has recovered in January-March quarter and sales were good for all divisions.
TVS Motor Company rose as much as 2.7% to a record high after posting a 10 percent increase in total vehicle sales for March 2017.
Indian stock, bonds and currency markets were closed on Tuesday for a market holiday.
(With inputs from Reuters)