(I) Nationality:
A candidate must be either:
(a) A citizen of India, or
(b) a subject of Nepal, or
(c) a subject of Bhutan, or
(d) a Tibetan refugee who came over to India before 1st January, 1962 with the intention of permanently settling in India, or
(e) a person of Indian origin who has migrated from Pakistan, Burma, Srilanka, East African countries of Kenya, Uganda, the United Republic of Tanzania, Zambia, Malawi, Zaire, Ethiopia and Vietnam 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 favour a certificate of eligibility has been issued by the Government of India. A candidate in whose case a certificate of eligibility is necessary, may be admitted to the examination but the offer of appointment may be given only after the necessary eligibility certificate has been issued to him/her by the Government of India.

(II) Age Limits:
NOTE I : Candidates belonging to the Scheduled Castes and the Scheduled Tribes and the Other Backward Classes who are also covered under any other clauses of para 3(ii)(b) above, viz. those coming under the category of Ex-servicemen, Low Vision, Hearing Impaired (Partially deaf) and Locomotor disability (sub-category : Leprosy cured and Acid attack victims) person etc. will be eligible for grant of cumulative age relaxation under both the categories.
NOTE II : In regard to Functional Classification and Physical Requirements of PwBD candidates, the same procedure as has been followed till the previous examination may be followed by the Government (Ministry of Environment, Forest and Climate Change).
NOTE III : The term Ex-servicemen will apply to the persons who are defined as exservicemen in the Ex-servicemen (Re-employment in Civil Services and Posts) rules, 1979 as amended from time to time.
The age concession under para 3(ii)(b)(iv) and (v) will be admissible to ExServicemen i.e. a person who has served in any rank whether as combatant or noncombatant in the Regular Army, Navy and Air Force of the Indian Union and who either has been retired or relieved or discharged from such service whether at his own request or being relieved by the employer after earning his or her pension.
NOTE V : Notwithstanding the provision of age relaxation under para 3(ii)(b)(vi) above a person with benchmark disability candidate will be considered to be eligible for appointment only if he/she (after such physical examination as the Government or appointing authority, as the case may be, may prescribe) is found to satisfy the requirements of physical and medical standards for the concerned Services/Posts to be allocated to the person with benchmark disability candidates by the Government.
NOTE VI : The date of birth accepted by the Commission is that entered in the Matriculation or Secondary School Leaving Certificate or in a certificate recognized by an Indian University as equivalent to Matriculation or in an extract from a Register of Matriculates maintained by a University, which extract must be certified by the proper authority of the University or in the Higher Secondary or an equivalent examination certificate.

(III) Minimum Educational Qualifications: A candidate must hold a Bachelor's degree with at least one of the subjects namely Animal Husbandry & Veterinary Science, Botany, Chemistry, Geology, Mathematics, Physics, Statistics and Zoology or a Bachelor's degree in Agriculture, Forestry or in Engineering of any of Universities incorporated by an Act of the Central or State Legislature in India or other educational institutions established by an Act of Parliament or declared to be deemed as a University under Section 3 of the University Grants Commission Act, 1956, or possess an equivalent qualification.