Besides, expectations of encouraging economic data to be released later in the day and a firming trend at other Asian markets, influenced trading sentiments.
The 30-share index, which had gained 41.43 points in the previous two sessions, flared up by 141.72 points, or 0.50 per cent, to hit new record-high of 28,051.78, surpassing its earlier peak of 28,027.96 reached on November 10.
All sectoral indices, led by infrastructure, oil & gas, banking, auto and realty, gained up to 0.52 per cent.
Brokers said sustained foreign fund inflows amid expectations of positive retail inflation data for October and IIP numbers for September, to be released after trading hours today, boosted sentiments and lifted key indices to new highs.
A firming trend at other Asian markets following a record closing in the US markets too triggered buying on the domestic bourses, they added.
Among other Asian markets, Hong Kong's Hang Seng rose by 0.12 per cent, while Japan's Nikkei was up by 0.78 per cent in early trade today.
