Exts.A to D were marked before the Labour Court. 13. Evidently, the employee was appointed as Junior Engineer (E&C) with effect from 07.06.1997 under Group 3 (Admn) with a salary of Rs.4761.75 per month. Clause 14 of the appointment order issued by the management makes it clear that after confirmation of the job, the termination of service will be by one month's notice or one month's salary in lieu of notice by either side. It is not in dispute that the posting of the employee in the cadre of Junior Engineer was confirmed with effect from 07.06.1998 vide letter dated 13.07.1998. As per the letter dated 25.05.2000 of the management, the employee was promoted as Assistant Engineer (E&C) in Group 2A (Admn) with effect from 01.05.2000 and his revised salary was Rs.6008.79 per month. The services of the employee as Assistant Engineer were confirmed with effect from 01.05.2001 vide letter dated 30.04.2001 and it was categorically stated in the said letter that all other terms and conditions