Indian Civil Services exam is one of the most difficult exams to crack. For those who are not conversant with its strenuous history, allow me to share some numbers with you. In 2012, nearly 4.5 Lakh students appeared for this exam; 15,000 qualified for the prelims and only 998 made it into the final list. With a record 0.1% selection rate, it is as bad as landing an airplane in the dark with no radar. There is no place for the feeble hearted. In this article, I shall attempt to provide an overview of the pivotal subjects and the corresponding books to wage a war against the belligerent enemy named UPSC. A thorough study of the N.C.E.R.T Books to jog your memory with the elementary concepts in all subjects is taken for granted.