Section 12(2)(a) in The Inter-State Migrant Workmen (Regulation of Employment and Conditions of Service) Orissa Rules, 1980
(a)in cases where the migrant workmen recruited or employed by the contractor perform the same or similar kind of work as the workmen directly employed by the principal employer of the establishment, the wage rates, holidays, hours of work and other conditions of service of the migrant workmen of the contractor shall be the same as applicable to the workmen directly employed by the principal employer of the establishment on the same or similar kind of work;