Statutory advisory bodies that promote cooperation and coordination among groups of neighbouring States on economic, social and security matters.
The 1956 statutory origin, the five councils, the Home Minister as common chairman and the separate North-Eastern Council are standard centre-state coordination facts.
Zonal Councils are statutory (States Reorganisation Act, 1956), not constitutional like the Inter State Council (Art 263); the North-Eastern Council is separate (1971) and not the sixth Zonal Council.
Five statutory advisory councils (States Reorganisation Act, 1956), chaired by the Union Home Minister, with a separate North-Eastern Council (1971).