D. Boopalan & Ors vs Madras Metropolitan W.S.S. Board & Ors

The Supreme Court examined the amendments to the Leave Regulations of the Madras Metropolitan Water Supply & Sewerage Board under Section 81 of the Madras Metropolitan Water Supply & Sewerage Act, 1978. The Court upheld the Board's authority to regulate service conditions, including study leave for engineers, emphasizing the necessity of prior permission and the execution of a bond for rejoining service post-study. The amendments were deemed valid and applicable only prospectively, affirming the Board's discretion in service matters.