In which of the following cases, the nature, scope and object of acknowledgement within the meaning of…

All three decisions examine acknowledgment and its effect on limitation. Mazda interpreted section 19 of the 1908 Act, the predecessor of section 18; Prabhakaran applied acknowledgment to mortgage redemption; Budhraja explains admission of a subsisting jural relationship and limits renewal to the acknowledged liability. Acknowledgment must be written, signed and made before the limitation period expires; it does not revive an already barred claim under section 18.