May derivatives contracts are set to expire tomorrow, which also held back investors.
The 30-share Sensex settled the session lower by 63.61 points, or 0.21 per cent, at 30,301.64.
The barometer had lost 205.72 points in the previous session after investors took profit amid volatile global cues in the aftermath of a terror attack in the UK.
The 50-share NSE Nifty regained the key 9,400-mark to touch a high of 9,431.90, but failed to hold on to the crucial level and settled down 25.60 points, or 0.27 per cent, to end at 9,360.55.