In which of the following cases was it held that 'the rights conferred under section 25 of the Hindu…

In "Seshi Ammal v. Thaiyu Ammal", (1964), the Madras High Court dealt with a maintenance decree based on an agreement prohibiting any increase. Section 25 of the Hindu Adoptions and Maintenance Act, 1956 permits alteration on a material change of circumstances, whether the amount was fixed by decree or agreement before or after the Act, so the earlier promise could not defeat that statutory right.