Explanation:

Sec. 18.

Section 18 of the Limitation Act is based on the principle that the bar of limitation should not be allowed to operate in cases in which the existence of a claim is acknowledged by persons who are under the liability.

According to Section 18. Effect of acknowledgment in writing.—(1) Where, before the expiration of the prescribed period for a suit or application in respect of any property or right, an acknowledgment of liability in respect of such property or right has been made in writing signed by the party against whom such property or right is claimed, or by any person through whom he derives his title or liability, a fresh period of limitation shall be computed from the time when the acknowledgment was so signed.