This discussion addresses a seniority issue arising from a technical resignation with a right to lien. The individual resigned from a Junior Technical Superintendent role to take up a Research Establishment Officer position, retaining lien rights. Upon returning to their original department, their seniority was affected, leading to a delayed promotion compared to batchmates. Advice suggests that seniority can be claimed due to the lien period, recommending a departmental representation and, if necessary, an appeal to the Central Administrative Tribunal (CAT).