Special powers of Board

(a) authorise any person, by general or special order, to enter into or upon any building or land with or without assistance of workmen for making any inquiry, inspection, survey, measurement, valuation or taking levels of such building or land or for carrying out any structural repairs or to execute any work which is authorised by or under this Act, or which it is necessary to execute for any of the purposes or in pursuance of any of the provisions of this Act or of any rule or regulation made thereunder : Provided that, before exercising such powers, so far as may be compatible with the exigencies of the purpose for which the entry is to be made, reasonable notice shall be given to the owner and occupiers, and the power shall be exercised as far as possible in their presence or in the presence of their representatives, and due regard shall be had to the social and religious usages of the owner or occupiers ; (a-1) undertake the redevelopment projects provided in section 91-A; (b) cause any building proposed to be structurally repaired or reconstructed or demolished to be vacated if so considered necessary, within a specified period, and take or cause to be taken such steps and use or cause to be used such force as may be reasonably necessary therefor. Where any such building or part thereof is caused to be vacated, the Board shall allot to the occupiers who are dishoused or required to vacate their premises temporary accommodation in any building maintained by the Authority at such place and to such extent as it deems fit; and the relevant provisions of this Chapter shall mutatis mutandis apply to such occupiers.