Dow Jones Industrial Average index traded lower on Thursday as US service PMI gauge fell more than expected in April to 53.5. Blue chip index shed 0.47% or 61.98 points and finished at 13,206.59 with basic material and industrial sectors posting the biggest losses. 23 of 30 shares ended in the red area on Thursday. Hewlett Packard dropped 3.1%, the most in Dow index. On the upside modest gains were seen from Procter & Gamble and Walt Disney Co which added 0.8% and 0.6% respectively.