(i) No candidate shall be appointed to the Service unless he is
(a) acitizen of India, or
(b) a citizen of Nepal, or
(c) a subject of Bhutan, or
(d) a Tibetan refugee who came over to India before 1“ January 1962, with the intention of permanently settling in India, or
(e) A person of Indian origin who has migrated from Pakistan, Burma, Shri Lanka, East African countries of Kenya, Uganda the United Republic of Tanzania (formerly Tanganyika and Zanzibar), Zambia, Malawi, Zaire and Ethiopia with the intention of permanently settling in India:
Provided that a candidate belonging to categories (b), (c), (d) and (e) shall be a person in whose favor a certificate of eligibility has been issued by the Government of India.
(ii) A candidate in whose case, a certificate of eligibility is necessary may be admitted to an examination or interview conducted by the Commission or any other recruiting authority of the Government and he may also provisionally be appointed subject to the necessary certificate being given to him by the Government of India.
(iii)No person shall be recruited to any post in the Service by direct appointment, 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 certificates from two 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.
5. No person shall be appointed to a post in the Service unless he possesses educational and other qualifications specified against such post in Appendix “B’ to these rules.
6. No person__
(a) Who has entered into or contracted a marriage with a person having a spouse living, or
(b) Who having a spouse living, has entered into or contracted a marriage with any person, shall be eligible for appointment to the Service :
Provided that the Government may, if satisfied that such marriage is permissible under the personal law applicable to such person and the other party to the marriage and that there are other grounds for so doing, exempt any person from the operation of this rule.