Section 161(d) in The Rajasthan Building and Other Construction Workers (Regulation of Employment and Conditions of Service) Rules, 2009
(d)that where other mechanical methods are being used to affect total or partial collapse of a building or other construction work, there shall be maintained, in the area into which the affected portion of such building or other construction work may fall, a zone of demolition at least one and a half-times the height of such affected portion thereof; and