Markets end marginally lower; IT shares slump: After making a firm opening, benchmark indices are ended marginally lower tracking weak global cues and selling in IT shares. However, buying among auto and capital goodsshares has capped the downslide. The Sensex ended lower by 45.5 points at 27842.3 and the Nifty was up 17 points at 8378.40. The market breadth indicating the overall health of the market was positive. In the foreign exchange market, the rupee edged lower against the dollar in choppy trade due to rise in the greenback’s value against other currencies overseas. In overseas markets, euro hit a nearly nine-year low versus the dollar on Monday as investors bet on quantitative easing by the European Central Bank while soft manufacturing surveys pushed down shares and sent oil prices to 5 1/2-year lows. Benchmark indices are expected to consolidate gains this week and investors would take cues from earnings with Infosys kicking off the December-quarter result season on Friday.