2. In this Act, unless there is anything repugnant in the subject or context,-(a) “Commissioner” means the Mines Labour Welfare Commissioner appointed under section 9, and includes any officer authorised in writing by the Commissioner to exercise or perform any of his powers or functions under this Act;(b) “Fund” means the Mines Labour Housing and General Welfare Fund constituted under section 4;(c) “Housing Board” means the Mines Labour Housing Board constituted under section 6;(d) “Miners Welfare Board” means the Miners Welfare Board constituted under section 8; and(e) “prescribed” means prescribed by rules made under this Act.