Provide me name of some best books for preparation of Indian police service General Knowledge examination ?

Here I am giving you name of some best books for preparation of Indian police service General Knowledge examination

Special Current Affairs for Civil Services Examination (2013)
Author: S. A. Majid



Gist of India Year Book 2013 for Civil Services Preliminary CSAT and Main Examinations
Author: Sachchida Nand Jha, S. A. Majid



The Best Book of General Knowledge 2015 + Most Popular Objective Current Affairs Volume 2 Special
Author: SAP