which is a good maths book written by K.C.Sinha or by M.L.Khaana?

I suggest rd sharma , believe me, many books dont matter, rd sharma will be difficult but, stick to it. math will be a chocolate.

I studied in fiitjee , when i entered fiitjee, i used to score around 6-11 % but i used it thoroughly for 2 years and i am getting 123 in iit 2011. and dont buy many books, make sure you have both vol. of iitjee by rd sharma.

practisce really hard.

best of luck. be away from arihant they can make your logic suck