Protection of rights of workers under any other law, etc.

Nothing in this Act shall affect any right or privileges which a worker in any shop or establishment is entitled to at the date of commencement of this Act under any other law, contract, custom or usage applicable to such shop or establishment or any award, settlement or agreement binding on the employer and the worker in such shop or establishment, if such rights or privileges are more favourable to him than those to which he would be entitled under this Act.