The 30-share barometer rose by 66.70 points, or 0.34 per cent, to 19,730.34 led by IT, technology and consumer durables sector stocks. The index had ended almost flat at 19,663.64 points on Friday.
The wide-based National Stock Exchange index Nifty moved up by 14.65 points, or 0.25 per cent per cent, to 5,965.95.
Brokers said increased buying by participants ahead of inflation data for December to be released later today and third quarter earning results from top bluechip companies such as TCS, influenced trading sentiments.
Stocks of second largest software exporter Infosys continued its upward march, after the company announced Q3 earnings on Friday, and gained 2.48 per cent to Rs 2,780, while TCS was up 1.45 per cent at Rs 1,325.25.
In the Asian region, Hong Kong's Hang Seng rose by 0.16 per cent. The stock market in Japan is closed today.