Section 4(3) in The Haryana Home Guards and Defence Services (State Service Class II) Rules, 1975
(3)No person shall be appointed to the Service by direct recruitment, unless he produces a certificate of character from the principal academic officer of the university, college, school or institution last attended, if any, and similar certificate from two other responsible persons, not being his relatives who are well acquainted with him in his private life and are unconnected with his university, college, school or institution.
