Meanwhile, the Nifty was trading lower by 19.75 points or 0.19% at 10,302.00 with 30 components falling.
Hero MotoCorp, Axis Bank, Bajaj Auto and M&M counters, however, saw buying activity.
A weakening rupee, which depreciated by 35 paise to 65.51 against the dollar during the day on fears that the tax rate decision of the GST Council will have a revenue implication of ₹20,000 crore annually, too dampened investor sentiment.
During the pre-opening session, Sensex was flat while Nifty was the red. Among them are Bank of Baroda, Sun Pharma, Eicher Motors, GAIL, Jaiprakash Associates, MOIL, Reliance Capial, Religare Enterprises, Omaxe, IVRCL, Unitech, Gitanjali Gems, Anant Raj, Apex Frozen and Cadila Healthcare. However, emergence of selling at every rise wiped off initial gains and the index finally settled 91.69 points, or 0.28 % down at 32,941.87, its weakest closing since October 26.
The loss in BSE capital goods was maximum at 1.41 per cent, followed by telecom, infrastructure and PSU.
Senate approves Buhari's $5.5bn foreign loan request
Senate today approved the $5.5 billion external loan requested by President Muhammadu Buhari to finance Federal Government projects.
Indian shares look set to open flat to slightly lower on Tuesday after official data showed India's retail inflation accelerated more than expected in October, adding pressure on the RBI to keep rates unchanged in the upcoming policy meeting in December.
RCom shares fell as much as 12.1 per cent in morning trade.
The wider Nifty50 of the National Stock Exchange (NSE) fell by 96.80 points, or 0.94 per cent, to provisionally close (at 3.30 p.m.) at 10,224.95 points.
At 9.30 AM: Markets turned positive after opening on a negative note on Tuesday.