G.P. Singh, J.

This order shall dispose of Miscellaneous Petitions Nos. 421 and 460 of 1972.

These two petitions under Articles 226 and 227 of the Constitution are directed against two orders of the Industrial Court, Indore, passed on August 5, 1971 and April 17, 1972. The facts are that the Bhilai Steel Plant, which is an undertaking of Hindustan Steel Limited (a company in the public sector), introduced an incentive bonus scheme with effect from December 1, 1961 for some categories of workmen which in 1964 was extended to certain other categories. The workmen's demand, however, was that the scheme should be applied to all employees who are directly and indirectly contributing in the production and that the same should be made applicable from December 1, 1961. The Steel Workers Union, which is the representative union of employees, therefore, after the usual notice of change and failure of negotiations and conciliation, made a reference to the Industrial Court under section 52 of the Madhya Pradesh Industrial Relations Act, 1960, for arbitration of the following industrial dispute:

Whether all categories which are directly and/or indirectly contributing in the production bonus s