Section 16(3)(e) in Bihar Secretariat Service Rules, 2010
(e)The inter-se seniority of those candidates, whose recommendation had been received from Bihar Public Service Commission / Bihar Staff Selection Commission but their merit was not mentioned, shall be determined on the basis of their educational qualification and if their educational qualification are same, their inter-se seniority shall be determined on the basis of age. But their seniority shall be determined below those candidates who were recommended / appointed with their merit by same transaction and in same year.