The 30-share index was trading higher by 129.61 points, or 0.46 per cent, at 27,803 21, with sectoral indices led by PSU, banking, power, IT realty and oil & gas stocks getting all the limelight, rising by up to 0.47 per cent.
The gauge had gained 30.49 points in the previous session on Friday.
Brokers said increased buying in select blue-chips and a mixed trend at other Asian markets amid investors betting on a hike in interest rates by the US Fed before the end of the year and upbeat retail sales influenced sentiment.
The US Dow Jones Industrial Average ended 0.22 per cent higher in Friday's trade.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)