Globally, Asian markets, climbing to their highest in more than 18 months, however, capped the losses.
At 01:40 pm, the S&P BSE Sensex was trading at 28,286, down 4 points, while the broader Nifty50 was ruling at 8,765, down 3 points.
Broader markets outperformed the frontline indices. The BSE Smallcap index hit an over nine-year high in intra-day trade, while BSE Midcap was little changed.
The market breadth, indicating the overall health of the market, was negative. On BSE, 1,354 shares fell and 1,345 shares rose. A total of 143 shares were unchanged.
Banking stocks were the biggest laggards on the Nifty with ICICI Bank Ltd and State Bank of India falling as much as 2.2% and 1.3%, respectively.
Union Bank of India tanked over 8% after the public sector bank's gross non-performing assets rose to 11.70% in the December quarter from 7.05% reported in the same quarter of last financial year.
Among gainers, Indraprastha Gas rose to a record high after posting a 37% increase in its December-quarter net profit.
Manappuram Finance surged nearly 13% to a three-and-a-half-month high after posting a 100% increase in its December-quarter profit.
Overseas, Asian stocks rose as investors grew more confident about the China, world's second-largest economy.