Section 235(1)(a) in The Orissa Building and Others Construction Workers (Regulation of Employment and Conditions of Service) Rules, 2002
(a)no building worker employed in building or other construction work shall be required or allowed to work for more than fifteen hours a day inclusive of intervals of rest of sixty hours in a week: Provided that intervals of rest not less than half an hour are given after every five hours of continuous work as laid down in sub-rule (2) of Rule 232.