Section 172(e) in The Tamil Nadu Building and other Construction Workers (Regulation of Employment and Conditions of Service) Rules, 2006
(e)every ladder is,-(i)secured so as to prevent undue swaying;(ii)equally and properly supported on each of its upright;(iii)so used as not to cause undue sagging; and(iv)placed as nearly as possible at a inclination of four in one;
