In the case of any industrial establishment in which one hundred or more workmen are employed or have been employed on any day in the preceding twelve months, the appropriate Government may by general or special order require the employer to constitute, a Works Committee consisting of representatives of employers and workmen engaged in the establishment so  that the number of representatives of workmen on the Committee shall not be less than the number of representatives of the employer. The representatives of the workmen shall be chosen in the prescribed manner from among the workmen engaged in the establishment and in consultation with their trade union, if any, registered under the Indian Trade Unions Act, 1926.