30. An improvement or development scheme may provide for all or any of the following matters, namely:- (a) the acquisition by the Authority of any land, in the area comprised in the scheme, which will, in their opinion, be required for the execution of the scheme or be affected by the execution of the scheme; (b) the laying out or re-laying out of the land in the said area; (c) such demolition, alteration or reconstruction of buildings situated on land which it is proposed to acquire in the said area, as the Authority may think necessary; (d) the construction of any buildings which the Authority may consider it necessary to erect for any purpose other than sale; (e) the laying out or alteration of streets (including bridges, causeways and culverts); (f) the levelling, paving, metalling, flagging, channeling, sewering and draining of the said streets and the provision therein of water, lighting and other sanitary conveniences ordinarily provided in a Municipality; (g) the raising, lowering or levelling of any land in the area comprised in the scheme; (h) the formation, establishment, retention or enlargement of open spaces, parks, recreational zones, play grounds, markets, bazars, shopping areas, or any other type of development, as may be considered necessary for urban communities; (i) the augmentation of the present water-supply, or any other scheme for the improvement of the water-supply; (j) the making of a drainage and sewerage scheme including outfall works; and (k) the development of residential areas, commercial areas, industrial areas, recreational areas, educational zones and administrative zones; (l) the development of such areas outside, but contiguous to, the area of a particular scheme or schemes as the Authority may think fit to develop; and (m) any other matters consistent with this Ordinance which the Authority may think fit.