In the process, the barometer came off its 8-month high, which was achieved yesterday.
The expansion of the much-publicised Union Cabinet failed to move investors in a big way.
A private PMI survey showed that the service sector activity, fell to 50.3 in June, from 51 in May, the lowest for the index in seven months and the second-lowest in a year.
The rupee today lost some of its sheen against the dollar as it ended lower.
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The 30-share barometer closed at 27,166.87, a loss of 111.89 points, or 0.41 per cent. The index had risen over 881 points in the past six sessions.
The 50-share NSE Nifty too slipped from its 10-month high by settling lower by 34.75 points, or 0.42 per cent, at 8,335.95.
"The market capped the winning streak after investors locked in profits as the market was in an overbought position," said Manoj Choraria, a Delhi-based NSE stock broker.
Of the 30-share Sensex pack, 19 ended with losses and 11 turned higher.
A weak trend in Asia with an eye on a brewing crisis in Italy's banking industry too dampened sentiment here.
GAIL sank the most, plunging 2.45 per cent. Power Grid was down 2.36 per cent. Others that weighed on the index include Bharti Airtel, Hero MotoCorp, Tata Motors, NTPC, Asian Paint, Bajaj Auto, ICICI Bank, Axis Bank, Infosys, ONGC, ITC Ltd, M&M and TCS Ltd, falling by up to 2.16 per cent.
Coal India, HDFC, Tata Steel, Wipro, L&T, RIL and Adani Ports turned green, thus cushioning the fall.
Fertiliser stocks, including Coromandel International, Zuari Global and National Fertilizer, saw some selling pressure, falling as much as 11.59 per cent, following the government's decision yesterday to cut retail prices of non-urea fertilisers.
In tandem with the overall trend, the small-cap index declined 0.11 per cent and mid-cap 0.08 per cent.
Foreign portfolio investors (FPIs) net bought shares worth Rs 182.28 crore yesterday, as per provisional data.
Globally, Japan's Nikkei was down 0.67 per cent and Hong Kong's Hang Seng fell 1.46 per cent while Shanghai Composite was up 0.60 per cent.
the minimum import price on 66 steel products for two months to ring-fence domestic industries from cheap global imports.
Tata Steel rose 0.06 per cent while JSW Steel rose 0.25 per cent and Jindal Steel and Power were up 0.48 per cent.
The market breadth remained positive as 1,745 stocks ended in the green while 1,135 finished in red while 124 ruled steady. The total turnover on BSE shrank to Rs 3,914.82 crore, from Rs 4,258.42 crore yesterday.