Section 586(3) in Kolkata Municipal Corporation Act, 1980
(3)If the municipal authority, at the office of which, or the officer or the employee of the Corporation or the person acting under the direction of any municipal authority or any officer or employee of the Corporation, at the office or the residence of whom, a notice has been delivered or left under sub-section (1), satisfies the court having jurisdiction that the relief claimed was tendered to the plaintiff before the institution of the suit, the suit shall be dismissed.