The Wall Street tumbled on Thursday on profit taking triggered by disappointing retail sales and a widening trade deficit, which, aroused worries about the economy.The Dow Jones industrial average slumped 148 points to 13,215. The Nasdaq dropped 43 points to 2534.Indian ADRs ended in red across-the-board. MTNL plunged 4% to $7.11. Wipro, Patni Computers, Tata Motors and Dr.Reddy's dropped around 3% each to $16.24, $24.75, $17.33 and $16.59, respectively. Infosys, Satyam, HDFC Bank and VSNL also ended in red.
