Best NDA Foundation Coaching in Bihar Best NDA Foundation Coaching in Bihar : The UPSC (Union Public Service Commission) conducts the National Defence Academy Exam or the NDA, on a national level to hire new cadets for the Army, Navy, and Air Force. It’s a difficult exam to pass. A strong foundation combined with determination, on the other hand, can guide you to the NDA. Trishul Defence Academy provides the best NDA Foundation Coaching in Bihar State to help you realise your dream of becoming an officer in the Indian Defense Services. Our foundation course is a preparatory course for