Mahanadi Coalfields Ltd (MCL) has contributed Rs 50 crore to the chief minister's relief fund for relief and rehabilitation measures for the cyclone-affected people in the state. The cheque of Rs 50 crore was handed over to the Chief Minister Naveen Patnaik by A N Sahay, chairman-cum-managing director, MCL in the presence of directors, trade union leaders and senior executives of the company.