47/27, Subhash Road, near Geetanjali, E.C. Road (Adjoining Venkatesh Wedding Point Lane), Dehradun
  • Phone +91-8874411111

  • Email info@colonelsdefenceacademy.in

Welcome to Colonels' Defence Academy. Colonels' Defence Academy Run by Ex Defence Officer Colonel Navin Dabral(Retired) , Best NDA Coaching in Dehradun, India.

Combined Defence Services (CDS)

The "Combined Defence Services" Examination (CDSE) is conducted twice in a year by the Union Public Services Commission for recruitment into the Indian Military Academy, Officers Training Academy, Indian Naval Academy and Indian Air Force Academy.


Candidates qualifying the written test are interviewed by the Service Selection Board and if finally selected, depending upon the choice given by the candidates and their merit list ranking,

Education Qualification

  • Indian Military Academy & Officer Training Academy (Degree from a recognized university).
  • Indian Naval Academy (B.Sc./ Bachelors in engineering from recognized university).
  • Air Force Academy (Degree from a recognized university).

Age Criterion

  • IMA : 19-24 Years (Unmarried Male)
  • AFA : 20-24 Years (Unmarried Male)
  • INA : 19-23 Years (Unmarried Male)
  • OTA : 19-25 Years (Unmarried / Married Male)
  • OTA : 19-25 Years (Unmarried Female)