The key benchmark indices were trading lower on heavy selling by funds following a weak global trend.
Selling pressure has emerged across most sectors and power, capital goods and pharma lead the decline.
At 11:38 a.m., the Sensex was down 45.10 points at 9,191.18 levels and the Nifty has slumped 13.45 points to 2,810.50 levels.
Mr. Shrikant Chouhan, technical analyst, Kotak Securities, said, “The overall breadth of the market remains weak but if the Nifty is able to sustain above 2,790 then it may reach 2,925 levels also.”