(1) No suit shall be instituted against the Board or against any officer or servant of the Board or against any person acting under the order or direction of the Board or any officer or other servant, in respect of any act done, or purporting to have been done in pursuance of this Act or any rule or regulation made thereunder, until the expiration of two months after notice in writing has been left at the office of the Board and, in the case of such officer, servant or person, unless notice in writing has also been delivered to him or left at his office or place of residence, and unless such notice states explicitly the cause of action, the nature of the relief sought, the amount of compensation claimed and the name and place of residence of the intending plaintiff and unless the plaint contains a statement that such notice has been so left or delivered.
(2) Nothing in sub-section (1) shall be deemed to apply to a suit in which the only relief claimed is an injunction of which the object would be defeated by the giving of the notice or the postponement of institution of the suit.