The pressure continues to mount on Leicester boss Paulo Sousa after his side were on the wrong end of a seven-goal thriller at Carrow Road.
The Foxes, who opened the scoring through Martyn Waghorn`s superb solo run and finish, remain at the foot of the npower Championship as goals from Andrew Crofts, Adam Drury and a Wes Hoolahan brace earned Norwich victory. Matty Fryatt, who came on to score twice, was sent off for a goalmouth tussle with Leon Barnett after the Foxes' third goal, and that effectively killed off any hopes they had of taking a point.
Following Waghorn`s opener after just a minute and 20 seconds, Crofts equalised, with Grant Holt cutting the ball back from the left for the Wales international to drill the ball low across Carl Ikeme.
Norwich went ahead from the penalty spot after Michael Morrison was adjudged to have handled a cross from Russell Martin and Hoolahan stroked home the penalty. Hoolahan then picked out Drury and he found the bottom corner to make it 3-1 on his 300th league appearance.
Leicester pulled a goal back three minutes later when Steve Howard's shot was saved by Ruddy but substitute Fryatt was on hand to poke in the rebound. But Norwich restored their two-goal advantage in the 74th minute when Holt laid the ball to Hoolahan and he smashed a half-volley into the top corner from 20 yards.
But Leicester refused to lie down and came back again to make it 4-3 when Fryatt scored a superb individual effort. The striker was then shown a straight red card in his attempts to get the ball back.