Section 9. The Governor General in Council may, by notification in the Gazette of India, and subject to such li

29. The Governor General in Council may, by notification in the Gazette of India, and subject to such limitations and conditions as may seem to him expedient, exempt from the operation of the whole or any part of this Act any local area, or any mine or group or class of mines, or any class of persons. Power to alter or rescind orders.