Yes sure, here I am suggesting you names of some good books for the preparation of IPS Entrance Exam (civil services examination):



CSAT: General Studies 2012 (Paper 2)
by
Arun Sharma,Madhukar Kumar Bhagat,Hari Mohan Prasad,Abhijit Guha
Publisher: Tata Mcgraw-hill (2011)

UPSC Civil Services Preliminary Examination Paper-I In 60 Days
by
Rakesh Dwivedi

UPSC Portal: CSAT Comprehensive Manual
by
Vivek Kumar Singh
Publisher: UPSCportal Publications (2011)


CSAT 2012 (paper II)
by
Manish Ranjan,Annita,Rajneesh Singh,Kiran Bedi
Publisher: Cl India (2012)