It took place between November 2006 and January 2007, with 24 teams divided into five regional groups.
[1] The 24 teams competing in the tournament were divided into five zonal groups: Central, East, North, South and West.
The top two sides from each group progressed to the knockout stages.
If points in the final table were equal, teams were separated by most wins, then head-to-head record, then number of bonus points, then net run rate.
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