hello,

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