Combined Defence Services Exam is conducted by the UPSC two times in a year for admissions to Indian Military Academy (IMA), Indian Naval Academy (INA), Air Force Academy (AFA) and Officers Training Academy (OTA).
UPSC CDS (II) Exam Pattern:| Paper / Subject | Questions | Duration | Marks |
| English | 120 | 2 Hours | 100 |
| General Knowledge | 120 | 2 Hours | 100 |
| Elementary Mathematics | 100 | 2 Hours | 100 |
Elementary Mathematics is not required for admission to Officers Training Academy (OTA). There is penalty for wrong answers.
CDS EligibilityWomen candidates are eligible for OTA only.
Education: For IMA and OTA, you need a degree of a recognized university. For INA, degree in engineering is required. For AFA, you should have a recognized degree and Physics & Mathematics at 10+2 level.