IT and SM

i think for I.T and S.M. study module is enough

but if want other reference book then for i.t. dinesh madan is gud ......

thnxxxxxxxxxxx jyotsna ,,,, u r rightly said study module is sufficient ,,,

None other than Institute material. Other materials are just copy paste book in a polished manner. Moreover, max. questions directly touch Institute material.

yes institute's module is the best buy....

yaa, study material is sufficient and do from scanner and RTP also.