What NDA Cadets Do On Sundays? National Defence Academy is known to Produce World Class Officers in Tri Services. National Defence Academy  has many Departments to facilitate world class Training however there are certain Holidays too in National Defence Academy. Read blog to know What NDA Cadets Do On Sundays…. Certain Gusted Holidays and Sundays are lenient days where in there is not much Pressure of Training and thus Gentleman Cadets can move out Of Academy Only if they meet following Criteria:- 1.Gentleman Cadets has Completed all the Academics and Drill Training and there is no pending Drills to be completed 2.Gentleman