Hii....i m RAJAT....i hav just passd 12 in march 2011....i am taking coachng 4 iit in kota nw....i m willing to be an IAS officer......iwant to knw hw i can prepare 4 ias from nw onwards as i hav 5 years in getting eligible for it...what all books i shud start reffering from nw....i m intrested to choose chemistry is it ok...what books for chemistry....