Broader markets, however, came under pressure as investors locked in gains, pulling down the small-cap and mid-cap index by 0.52 per cent and 0.50 per cent, respectively.
Global setup continued to remain positive ahead of a euro zone interest rate decision later in the day and rebound in crude oil prices.
"Oil prices edged higher, helped by US crude inventory figures, lending a positive bias to Asian stocks earlier in the day." said Anand James Chief Market Strategist of Geojit BNP Paribas Financial Services.
Country's biggest lender ICICI Bank topped the gainers list by surging 6.26 per cent to Rs 253.05 while state-run SBI too attracted buyers' attention and jumped 3.68 per cent.
Sensex resumed higher at 25,979.68 and firmed up to cross the 26,000-level after 15 weeks on initial buying, but slumped afterwards to 25,783.12 before ending at 25,880.38, still showing a gain of 36.20 points or 0.14 per cent.
The gauge had gained over 1,170 points in the past five sessions on the back of upbeat macroeconomic data, forecast of an above-normal monsoon and Infosys' strong revenue guidance.
Shares of Wipro, India's third-largest IT firm, fell by 7.01 per cent as the company reported 1.6 per cent drop in net profit to Rs 2,235 crore due to pressure on margins even as it aims to double revenue to USD 15 billion by 2020, while its board approved a Rs 2,500-crore share buy-back plan.
Besides, sentiment turned cautious after the Uttarakhand High Court quashed the imposition of President's rule in the state and revived the Congress government headed by Harish Rawat. The development may make the political wrangling worst at the national level.
higher, while 16 fell.
Major gainers were ICICI Bank (6.26 pc), SBI (3.68 pc), Coal India (2.89 pc), Axis Bank (2.08 pc), Tata Motors (1.83 pc), ONGC (1.41 pc), HDFC (0.90 pc), Cipla (0.89 pc), Maruti (0.72 pc), Sun Pharma (0.56 pc) and Dr Reddy's (0.46 pc).
Laggards included BHEL (2.86 pc), Hero MotoCorp (1.72 pc), ITC (1.61 pc), M&M (1.59 pc), Infosys (1.36 pc), Bajaj Auto (1.35 pc) and Adani Ports (1.20 pc).
Among BSE sectoral indices, bankex rose by 1.95 per cent, finance 1.23 per cent, oil&gas 0.67 per cent, metal 0.38 per cent and healthcare by 0.36 per cent, while IT fell 1.53 per cent followed by realty 1.47 per cent, teck (1.37 pc), power (1.09 pc), capital goods (1.06 pc), consumer durables (0.98 pc) and FMCG (0.83 pc).
The total turnover rose to Rs 3,238.40 crore from Rs 2,706.85 crore yesterday.
