Section 12(d) in The Punjab State Warehousing Corporation Staff (Conditions of Service) Group C and Group D (Service) Regulations, 2002
(d)in the case of persons appointed by transfer from different cadres, the seniority shall be determined according to pay preference being given to a person who was drawing a higher rate of pay in his previous appointment; and if the rates of pay drawn also the same, then by his length of service in those appointments and if the length of service is also the same, an older person shall be senior to a younger person,
