" The Act further amended paragraph 9 by substituting Rs. 15,750 for the figure Rs.6,000 883 At this stage itself, we may note that this Amending Act 38 of 1986 provided that the amended liberalised pension scheme would apply only to a Judge "who has retired on or after the commencement of the High Court and Supreme Court Judges (Conditions of Service) Amendment Act, 1986." A similar provision which made the amendment by Act 35 of 1976 applicable Only to those judges who have retired on or after October 1, 1974 was held ultra vires and struck down in the two decisions of this Court above referred to and it was held that the benefit of the amendment was available to all the retired judges irrespective of the date of retirement but subject to the condition that the enhanced pension was payable only with effect from October 1, 1974.