Hello anonymous, well it would be nice if you register and then we interact.. 
Well an ad from IDEA.. which says ” If you have no idea, Get Idea ” is apt here.
Firstly i would like to rate yourself against ” How serious are you for UPSC preparation ” on the scale of 1 to 5.
If you are very serious..
Subscribe for a print format of THE HINDU newspaper.
Start reading NCERT books class 6th to 12th slowly and make notes (Take 2 months time for this)
Meanwhile check previous year questions from http://mba.webmaggu.com/papers/ to understand what type of questions is asked.
After completing NCERT … Start reading books specified at bottom of WebMaggu one by one.. When u complete this, you will not only be ready to crack Prelims paper by huge margin, but you will also be ready to conquer MAINS paper. Hard work on your writing style may even fetch you top ranks.
So again I would like to rate you on scale of 1 to 5 as specified at the starting of my reply.