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CDS Articles & Updates
Combined Defence Services (CDS) Examination is conducted by UPSC twice a year to select officers for the Indian Military Academy (IMA), Indian Naval Academy (INA), Air Force Academy (AFA), and Officers Training Academy (OTA). Candidates undergo service-specific training and are commissioned as officers in the Indian Armed Forces.
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View all Formula of the day
Maths · Quadratics · 9 formulae in the cheatsheet
Trap of the day
nPr is ordered (arrangements), nCr is unordered (selections). “Arrange” → P, “choose” → C.
