The Sensex rose by 19.30 points, or 0.10 per cent, to close at 19,784.08. The gauge has climbed to its highest level since January 2011 on the back of the recent rally.
Buying was seen mainly in refinery, PSUs and IT counters. Smart rise in ICICI Bank, TCS, ONGC, Infosys, SBI and BHEL shares helped the index cement gains.
Outside the index, BPCL, HPCL, IOC and Gail gained in 1.8-5.5 per cent range on hopes that a proposed revision in the government's pricing formula would boost gas prices.
"Expectations of rise in diesel prices triggered rise in oil retailers," said Milan Bavishi, Head Research, Inventure Growth & Securities.
Additionally, Oil Minister M Veerappa Moily has allowed Reliance Industries and Cairn India to explore for oil and gas within the producing fields subject to certain conditions.
Cairn jumped 3 per cent while RIL closed almost flat.
More From This Section
However, the fall in HDFC, ITC, Tata Steel, L&T, Tata Motors, HDFC Bank, Jindal Steel, Sterlite and Hindalco capped the buoyancy to some extent.
The broad-based National Stock Exchange index Nifty gained by 6.65 points, or 0.11 per cent, to 6,016.15, after touching the day's low of 5,981.55.
"For the week, Sensex is up about 2 per cent, thus beginning the new year on a strong note. Several mid-caps have done strongly in the week," said Sanjeev Zarbade, Vice President (PCG Research), Kotak Securities.
Traders said investor confidence was intact even as global markets remained under pressure after senior Federal Reserve officials reportedly expressed concerns over expansion of the bond buying plan.
Besides weak global trend, steep fall in base metal prices in the overseas markets put pressure on the market to some extent, traders said. (MORE)