HYDERABAD ENGINEEIRING INDUSTRIES LTD. ETC. ETC. vs A.P. STATE ELECTRICITY BOARD ETC. ETC.

The Supreme Court held that under Section 49 of the Electricity Supply Act, 1948, the Board has the authority to unilaterally alter the conditions of supply and fix uniform tariffs. The Court clarified that the powers conferred by Section 18(c) are broad enough to support the Board's actions regarding supply conditions. The contention that the Board's policy to change supply voltage required adherence to Sections 28 and 29 was dismissed, as these sections pertain to different functions. The Court also ruled that the imposition of higher tariffs for failure to comply with voltage specifications is permissible and subject to the Board's discretion based on individual circumstances.