Will you please suggest me some of the best books for the preparation of (Civil Services Aptitude Test (CSAT)???

Here I am suggesting you some of the best books for the preparation of (Civil Services Aptitude Test (CSAT)

Paper-I: CSAT:

General Science:
NCERT Science books of class IX and X
NCERT Biology books of class XI and XII

Current Affairs of National and International importance:
Periodicals- Frontline, Business Today, Business Outlook, Yojana: Publication Division, Government of India
Newspapers- The Economic Times, The Times of India, The Hindu, Statesman, Telegraph

History of India, Indian National Movement:
Modern Indian history by Bipan Chandra
NCERT books of class IX and X (topics to cover- Contemporary
India, India and Contemporary World I, India and Contemporary World II)
Social Science NCERT books of class XI and XII (topics to cover- Themes in World History, Themes in India History- I, II and III)

India and World Geography:
Geography NCERT books of class XI and XII
India-2013 : Publication Division, Government of India
School Atlas of Oxford Publication

Indian Polity:
Political Science NCERT books of class XI and XII
Our Constitution by Subhash Kashyap
Indian Constitution (Bare Act): P.M. Bakshi
Introduction to Indian Constitution by D.D. Basu

Indian Economy:
Economics NCERT books of class XI and XII
Economic Survey of India: Publication Division, Government of India
India-2013: Publication Division, Government of India
Indian Economy by Ruddar Dutt and K.P.M. Sundaram
Indian Economy by S.K. Mishra and V.K. Puri
Annual Budget: Publication Division, Government of India

Paper-II: CSAT:
Comprehensive Ebook on CSAT being published by Jagran.