Combined Defense Services (CDS)
The Union Public Service Commission (UPSC) conducts CDS (Combined Defence Services) examination twice in a year. It is a national level entrance exam for selecting the eligible candidates in Defence Services. The candidates who want to join the Indian Military Academy, Indian Naval Academy, Air Force Academy and Officers Training Academy, can apply online for CDS exam. Candidates have to practice hard to qualify for this exam because it is a tough exam to crack. A large number of applicants aspiring to join Indian Defence Services appear in this exam each year.