The eligibility criteria for the UPSC Combined Defence Services (CDS) examination are as follows: UPSC CDS Eligibility Criteria – Age Limit for Combined Defence Services Nationality: A candidate must be one of the following: A citizen of India. A subject of Nepal or Bhutan. A Tibetan refugee who came to India before January 1, 1962, … Continue reading UPSC CDS Eligibility Criteria – Age Limit for Combined Defence Services