The 30-share index resumed lower at 28,345.49 and dropped further to 28,259.38 due to initial heavy selling pressure as wholesale inflation soared to a two-year high of 3.74 per cent in August.
Industrial output contracted by 2.4 per cent in July, reflecting the worst performance in 8 months mainly due to declining output in manufacturing and capital goods sectors.
However, the consumer inflation eased to a five-month low of 5.05 per cent in August, mainly because of a slower rate of price increase in vegetables as well as food and beverages.
The gauge had fallen by 691.74 points in the previous two sessions.
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The 50-share Nifty too settled 11 points or 0.13 per cent higher at 8,726.60 after moving between 8,739.85 and 8,688.90.
Of the 30-share pack, 17 closed with gains, while 13 ended in negative terrain.
Brokers said renewed expectations that RBI may announce a cut in its rate at its meeting next month, after retail inflation fell to a five-month low, triggered buying in banking and a few other stocks.
Other gainers in the Sensex kitty included, Adani Ports, Tata Motors, NTPC, Hero MotoCorp, Cipla, Dr Reddy's, Asian Paints, GAIL, L&T, Bajaj Auto, Maruti Suzuki and Bharti Airtel, rising by up to 2.93 per cent.
Coal India suffered the most by diving 1.72 per cent to Rs 325 after the company reported a 14.7 per cent decline in consolidated net profit for the quarter ended June 30.
L&T 2.51 per cent. Other movers that supported the key indices were Tata Motors, RIL, Power Grid, ONGC, Adani Ports, SBI, Cipla, Sun Pharma, NTPC and Axis Bank, gaining by up to 2.05 per cent.
Sectorwise, the BSE oil&gas index gained the most by surging 2.20 per cent, capital goods 1.56 per cent, infrastructure 1.48 per cent, PSU 0.85 per cent, realty 0.79 per cent and power 0.75 per cent.
Among the losers, besides Infosys, were HUL 2.32 per cent, HDFC 1.44 per cent, Lupin 1.09 per cent, M&M 0.88 per cent and Coal India 0.86 per cent.
Shares at other Asian bourses ended higher and so did European bourses in their early session.
Key indices in Hong Kong rose 0.88 while Japan's Nikkei gained 0.46 per cent. Shanghai Composite rose 0.08 per cent.
Europe's London FTSE up 0.58 per cent, Paris CAC 0.88 per cent and Frankfurt's DAX 1.18 per cent in their early trade.