Hello Yuvraj,

Here are the Educational qualification eligibility criteria for different posts - 

• For Indian Military Academy (IMA) and Officer's training academy (OTA) - degree of a recognised university or equivalent
• Indian Naval Academy (INA) - degree of engineering from a recognised university/institution
• Air Force Academy (AFA) - degree of a recognized university (with physics and mathematics at 10+2 level) or a bachelor of engineering.

If you are in the final year of your course you are also eligible to apply. You will need to submit a proof of passing the examination by a date to be specified in the Commission's Notice for the examination.

All the Best!

Hello yuvraj,

Yes,all branches of btech students can apply for CDE and there is as such no specification about the branch.
You can check the eligibility criteria and educational qualification in the link below:
Age-Limits:
19-24 Years for Indian Military Academy
19-22 Years for Naval Academy
19-23 Years for Air Force Academy
19-25 Years for Officers Training Academy
Educational Qualifications:

• IMA & OTA Degree of a recognized University Bachelor Degree or equivalent
• Naval Academy B.Sc. with Physics & Mathematics or Bachelor of Engineering
• Air Force Academy B.Sc. with Physics and/or Mathematics or Bachelor of Engineering

Hope this answer helps you,

Goodluck,

Thankyou.