The qualification for Civil Services Exam as far as training is undergraduation. When you are an undergrad you would have composed various tests in your understudy life, I'd express all that anyone could need to comprehend what a test is and how significant a 'test' is, Civil Services Exam is the same, it has a schedule, it has an example and it is a 'test'.
Presently coming to UPSC Civil Services Exam, I guarantee you that training isn't required. What is required is an 'introduction' program for perhaps a most extreme time of 15 days. You should simply take a seat genuinely with individuals who have endeavored the test (or who have cleared it ideally) and comprehend what UPSC CSE is about and what it requests of you.