Extending losses for the fourth straight session, the barometer also struggled as inflation woes, sluggish Monsoon and hike in railway freight rates weighed in on sentiment.
The BSE 30-share barometer resumed stable and immediately touched a high of 25,197.50. Later, it fell back sharply below 25K-mark at 24,878.66 before recovering some ground to settle at 25,031.32, a net fall of 74.19 points or 0.30 per cent.
The 50-issue CNX Nifty of the NSE also eased by 18.10 points, or 0.24 per cent, to end below 7,500-mark at 7,493.35.
Fast Moving Consumer Giant (FMCG) major ITC was the top loser from the Sensex pack with a fall of 6.50 per cent -- its biggest daily fall since last September -- on reports there is a proposal to hike excise duty on cigarettes of all lengths.
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ITC alone dragged down Sensex by 135.44 points today.
IT stocks led by Infosys also met with profit-booking ahead of the expiry of June contract on Thursday, say dealers.
Overall, domestic market breadth was positive as second-line stocks attracted good interest from retail investors. As a result, S&P BSE Midcap and BSE Smallcap indices closed with gains, outperforming the Sensex and Nifty.
Sugar stocks clocked gains of up to 11 per cent after government decided to provide additional interest-free loan of up to Rs 4,400 crore to sugar mills and hike import duty.