and the State Government has made promise in the advertisement to pay particular grade pay-scale to the appointees. The amendment effected by the State Government in the Fundamental Rules and the Rules of 1961 are contrary to the provisions of Article 309 of the Constitution of India. The counsel for the petitioners would also submit that the executive instruction issued by the General Administration Department on 28.07.2020 says that the same would be prospective, whereas, notifications are being given retrospective effect. She would also submit that the petitioners participated in the selection process, which commenced prior to 28.7.2020, and the entire selection process was completed prior to the date of notification except the issuance of appointment orders, and therefore, the amendment cannot be given retrospective effect. The Recruitment Rules of the respective departments, which have not been amended yet, provide basic pay and grade pay and the State Government cannot enforce it without amendment. She would further submit that the statute, which affects substantive rights, is presumed to be prospective in operation unless made retrospective. She would also submit that right accrued in favour of the petitioners as they participated in the selection process and the whole selection process was completed prior to the date of notification. It is further contended that the Doctors who were appointed after amendment had come into force are being paid full salary and therefore, denial of same treatment to the petitioners is, ex facie, arbitrary, discriminatory and violative of Articles 14 and 16 of the Constitution of India. It is further contended that Clause 3(7) of the advertisement deals with disqualification only and it cannot be used to curtail the terms and