The provisions of service conditions of every law applicable to the regular employees of the establishment of the PE simply apply to the contract labor engaged therein. Therefore, it is immaterial whether there exist any terms relating to such statutory rights/benefits of employment to the contract labor in the contract for service between the PE and the contractor. You have to bear in mind that the charges payable to the contractor include the cost of such benefits too. If there is a stipulation to the no of labor engaged on the work on daily basis, the PE can insist on a suitable substitute.
28th December 2018 From India, Salem