As per case facts, Haryana Public Service Commission (Appellant) issued advertisements for PGT (Maths) posts, involving a three-stage examination: Screening Test, Subject Knowledge Test, and Interview/Viva-Voce. The writ petitioner (Respondent) ... from BC (B) Category secured higher marks than some General Category candidates in the screening test but was not called for the next stage due to a higher category cut-off. She claimed migration to the General Category based on merit at the screening test stage. The Single Judge allowed the writ petition, directing a revision of the screening test result. The appeal challenges this. The question arose whether reserved category candidates scoring higher marks than general category candidates in a preliminary test should migrate to the open category at that initial stage. Finally, the High Court, relying on Supreme Court judgments, held that the principle of migration based on merit applies even at the screening test stage. It found the Single Judge's decision justified, directing a fresh merit list starting with the Open Category, considering all candidates based on merit.