- No Percentage required to Apply for the Combined Defence service exam, the main requirement is that a candidate should be a gradute or final year appeare candidate are also Eligible and there Age should be meet up to the requirement age limit of CDS.
I assume you are asking about the percentage of marks in your graduation.If you refer the official notification of CDS from Welcome to UPSC | UPSC ,they just ask for a degree of the candidate.They’ve not mentioned any specific percentage.They just want the degree from a recognized university.
For CDS written exam, score at least 35% , and you’ll clear the written with flying colours. Do refer previous year cutoffs from Welcome to UPSC | UPSC