The 30-share index, which had gained 88.26 points in the previous session, rose further by 13.28 points, or 0.07 per cent, to 18,642.43 points, led by oil and gas, power and IT sector stocks.
The National Stock Exchange index Nifty moved up by 11 points, or 0.20 per cent, to 5,620.10 points.
Brokers said sustained buying by funds amid a firm trend in other Asian bourses mainly boosted the trading sentiment.
The US Dow Jones Industrial Average ended 0.69 per cent higher in yesterday's trade.