UPSC entertains those persons who have crystal clarity in their entire preparation. Most of the candidates lack basic understanding of this exam despite putting enormous amount of hard work.
UPSC preparation and exam requires the person to be well informed in day to day affairs and basic understanding of the humanity subjects like history, geography, economy and polity. If a person is having basic understanding added with the clarity his preparation is half done.
There was a time when candidates preparing for UPSC exam would be terrified by the nature of questions that would be asked in the exam. But with changed pattern the candidates need not have to worry about the uncertainty.
UPSC does not expect a student to be scholars who instead of understanding the pulse do mastery over the subjects which is not required.
UPSC does not except one to be Einstein or Newton. All it checks is a sensible personality so that one is capable of defending and protecting the interest of in India and around the world.
So when will you 'Not' clear the exam !?
When you do not have enough clarity about this exam – Yes clarity not Confidence!
When you are not regular in your preparation
When you are not consistent in your preparation
When you miss news like launching of 20 satellites in one rocket and schemes like Make in India
When you think this is an exam rather than journey