i got some answer but my problem is that i m not able to concntrate too much on my studies so is it very hard for me to clear the upsc.

Hi, I think you are stressing yourself too much, apart from your regular routine for studies you must also take some time where in you can meet your friends and have some relaxation. Please remember hard work does not mean that you have to only study.Even mind needs some relaxation.You are not able

It is not the end of the world if you are not able to concentrate on your studies for UPSC. There are equally better other career options. Think what can be next best such as doing MBA or getting technically trained in some aspect and then go for it.