Hi Anil.

Greetings.

You can go for books like:

1.Arihant or R.S.Agarwal for reasoning and quants.

2.For english take Verbal Ability book by Arun Sharma.

3.For General Knowledge read news paper,buy current affairs yearly bydisha experts and focus on issues related to National and International Events,World Bodies,and Foreign Trade-Related information.

All the Best.