Despite Norwich going one behind in the opening stages of the game they fought back strongly to make sure they kept up their great home form.
Matty Waghorn opened the scoring with a goal inside two minutes, after beating four defenders superbly he got lucky as Ruddy let it slip past him into the net.
After close encounters from Crofts, Drury, Barnett and Russell Martin it was Crofts who finally got an equaliser. Grant Holt dragged the ball back from the left for the Welsh international to hammer it in the goal.
Hoolahan and Lappin came close after the interval and finally got their break when Morrison handled the ball in the penalty area, blocking a cross with his arm, leaving Hoolahan to calmly stroke the ball in from the spot.
Ikeme kept Leicester in with a shout denying Holt, Jackson and Elliot, but he could do nothing to stop Drury getting his first goal in 5 years, on his 300th appearance.
However Leicester weren’t dead and buried yet, as Matty Fryatt came off the bench to finish a rebound after Howard’s effort was blocked by Ruddy.
Norwich restored their two goal advantage moments later though, through the Anglian Home Improvements man of the match, Wes Hoolahan as his wonderstrike from 20 yards beat Ikeme with ease.
But Leicester still came back fighting getting a third through Fryatt again, this time scoring a superb individual effort, but his celebrations were cut short when he was sent off for a tussle with Barnett.
As the game came to a close, Norwich held off the 10-man Leicester with ease, and Drury came close to adding a 5th.
Anglian Home Improvements, raising the standards since 1966. For more information on our home improvement products visit our homepage.