The first trading day of the year was marked with positive sentiment in the markets, which opened higher on the back of funds buying, tracking other Asian markets.
The 30-share benchmark, Sensex, was up by 69.17 points at 13,857.08 in the first five minutes of trading.
Similarly, on the wide-based National Stock Exchange, Nifty, rose by 17 points at 3983.40 points.
Stock brokers said foreign funds were seen making fresh purchases triggered by reports of firming Asian markets.
The major gainers were Reliance Industries, Reliance energy, Reliance Capital, Larsen and Toubro, Ranbaxy, Mahindra and Mahindra, Maruti, NTPC, TNL and ACC.