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As per the eligibility criteria of UPSC CDS for Air Force Academy, it states that candidates need to pass graduation in any discipline from a recognized university with physics and mathematics at 10+2 level or passed BTech/BE for a duration of four years from a recognized university, those in the finaly years can also apply on provisional basis, the age limit is 20 to 24 years, hence if you had the required subjects at 10+2 level then you're eligible to appear for the exam, to know more detailed information for this, visit our page at https://competition.careers360.com/articles/cds-eligibility-criteria