Section 6(2)(b) in The Bureau of Indian Standards (Recruitment to Scientific Cadre) Regulations, 2002
(b)Candidates possessing a minimum qualification of Bachelor's Degree in Engineering or Technology or a Master's Degree in Natural Sciences or equivalent with not less than sixty percent marks (fifty percent for Scheduled Castes and Scheduled Tribes) and between twenty-one and twenty-seven years of age shall be eligible for the post: