i want to giv the ias exams..so plz tell me abt the subjects as i m doing my engineering now..n tell me frm wen to start studyng

what is your Branch!!!!!!!!

First focus on completing your engineering and in the meantime analyze if you won't like to do engineering related job at all in your career. IAS job is totally a different kind of job and unless you have a flair for administrative work and have good human skills it would be difficult persuing such