2011 AFC Cup group stage
A total of 32 teams, 20 from West Asia and 12 from East Asia, competed in the 2011 AFC Cup group stage. They included 28 direct entries and 4 losers of the 2011 AFC Champions League qualifying play-off (two from West Asia and two from East Asia).
The draw for the group stage was held in Kuala Lumpur, Malaysia on 7 December 2010. The 32 teams were drawn into eight groups of four. Clubs from the same country may not be drawn into the same group.
In each group, teams played each other home-and-away in a round-robin format. The matchdays were 1–2 March, 15–16 March, 12–13 April, 26–27 April, 3–4 May, and 10–11 May 2011.
The winners and runners-up of each group advanced to the knockout stage.
The clubs are ranked according to points and tie breakers are in following order:
...
Wikipedia