(1) The Regional Plan shall be a written statement and shall be accompanied by such maps, diagrams, illustrations and descriptive matters, as the Board may deem appropriate for the purpose of explaining or illustrating the proposals contained in the Regional Plan and every such map, diagram, illustration and descriptive matter shall be deemed to be a part of the Regional Plan.
(2) The Regional Plan shall indicate the manner in which the land in the National Capital Region shall be used, whether by carrying out development thereon or by conservation or otherwise, and such other matters as arc likely to have any important influence on the development of the National Capital Region and every such Plan shall include the following elements needed to promote growth and balanced development of the National Capital Region, namely:--
(a) the policy in relation to land-use and the allocation of land for different uses;
(b) the proposals for major urban settlement pattern;
(c) the proposals for providing suitable economic base for future growth;
(d) the proposals regarding transport and communications including railways and arterial roads serving the National Capital Region;
(e) the proposals for the supply of drinking water and for drainage;
(f) indication of the areas which require immediate development as "priority areas"; and
(g) such other matters as may be included by the Board with the concurrence of the participating States and the Union territory for the proper planning of the growth and balanced development of the National Capital Region.