At 10:15 am, the BSE S&P Sensex was down by 71 points to 40,731 while the Nifty 50 edged lower by 35 points at 12,014. Except for Nifty auto and FMCG, all sectoral indices at the National Stock Exchange were in the negative terrain with Nifty metal plunging by 1.76 per cent.
Among stocks, Tata Steel and JSW Steel dived by 3 per cent each while Vedanta was down by 2.5 per cent and Hindalco by 2.3 per cent.
Bharti Infratel lost by 5.5 per cent to Rs 250.80 per share. The other prominent losers were Bharti Airtel, Yes Bank, IndusInd Bank, Grasim and ONGC.
However, auto scrips showed gains with Bajaj Auto moving up by 1.2 per cent, Maruti by 0.9 per cent and Hero MotoCorp by 0.7 per cent. Britannia, Titan, State Bank of India and Kotak Mahindra Bank gained marginally.
Meanwhile, Asian shares tumbled on Tuesday after Trump said he will impose tariffs against imports from Brazil and Argentina, recharging fears about global trade tensions, while weak US factory data added to the gloom.
MSCI's broadest index of Asia Pacific shares outside Japan was down by 0.37 per cent and China's blue-chip CSI 300 index fell as much as 0.62 per cent before moving back to end the morning session flat. Japan's Nikkei shed 0.61 per cent.