Hello,

Syllabus includes: 

(1) english language & comprehension(30%)

(2) numerical ability(10%)

(3) general awarness (30%)

(4) reasoning ability including data intrepretation(30%)

For english section:

(A) Common Errors in English by Kiran Prakashan

(B)Plinth to Paramount by Neetu

(C) Word Power Made Easy by Norman Lewis:

For Numrical Ability:

(A) NCERT Classes 9th and 10th Mathematics Books

(B) How to Prepare for Quantitative Aptitude and Numerical Ability by Arun Sharma

(C) Quantitative Aptitude by RS Aggarwal

For General Awarness:

(A) General Knowledge by Lucent Publication

(B) Manorama Yearbook

For Reasoning:

(A)How to Prepare for Data Interpretation by Arun Sharma

(B)How to Prepare for Logical Reasoning by Arun Sharma

(C) A New Approach to Reasoning Verbal & Non-Verbal by Arihent

Study from these books and find other good books too. Try learning the key words as it helps in the help to remember the  complete thing

Both the books mentioned in GK section are imporatant and you cannot leave or select any one