Section 116(1) in Hyderabad Metropolitain Water Supply Sewerage Act, 1989
(1)No suit shall be instituted against the Board or against any officer or employee of the Board or against any person acting under the order or direction of the Board or any officer or other employee, in respect of any act done, or purporting to have been done in pursuance of this Act or any rule or regulation made there under 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, employee or person, unless notice in writing has also been delivered to him or left at his office or place or 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.