Hello,

The education eligibility criteria to appear in CDS is that a candidate must have passed bachelor's degree in any discipline from a recognized board. This is for IMA and OTA for INA a candidate must have passed bachelor's degree in Engineering  and for IAF  a candidate must have passed bachelor's degree in any discipline or bachelor's degree in Engineering  (Must have studied Maths and Physics in 10+2 level) from a recognized board are eligible.