The two top scoring teams in the Premier League failed to produce a goal on a night devoid of quality in either final third but not lacking in effort all over the pitch.
Claudio Ranieri's Foxes were able to snuff out early chances from City winger Raheem Sterling with Kasper Schmeichel at his best to deny the England international but the home side could have counted themselves lucky when a penalty call was waved away when Sergio Aguero was brought down in the area by Gokhan Inler, although the Argentine made the most of the contact.
The competition's joint-leading scorer Jamie Vardy fired wide late in the first half with a chance he usually snaffles while a rasping Christian Fuchs effort from a short free-kick was Leicester's best chance of the second half.
The Foxes defence threw themselves in front of City's star-studded attack at will throughout and it produced a response from their Boxing Day loss to Liverpool to show that they are certainly in with a title chance this season
For City, further improvement is required but with a squad of their quality, surely they will be pushing the top two for the remainder of the campaign.
The draw leaves Leicester sitting joint top of the table, only behind Arsenal on goal difference, while Manuel Pellegrini's City moved up to third where they find themselves three points in arrears of the top two.
2015/16 BARCLAYS PREMIER LEAGUE - SEASON SCORES