Indian Polity for Civil Service Examination by M. Laxmikanth
One of the best to prepare IAS Prelims exam, the book is a comprehensive package on Polity for students preparing for IAS.
Indian Art and Culture by Nitin Singhania
The book covers the syllabus of Indian Heritage and Culture, and has detailed knowledge on Indian art, painitings, music and architecture.
Oxford School Atlas by Oxford Publishers (Geography)
The book covers an extensive knowledge on climate, natural vegetation, wildlife, agriculture, minerals, industry, demography, human development, environmental concerns, and natural hazards.
Certificate Physical and Human Geography by Goh Cheng Leong
The book is loaded with extensive knowledge on physical and human geography with illustrations wherever needed.
General Studies Paper 2 Manual by MHE (CSAT)
The book goes on in synchoronisation as per the prescribed syllabus and follows the exam pattern.
A Brief History of Modern India by Rajiv Ahir (Modern India)
The book is written to cover events ranging from decline of Mughal Empire and rise of East India Company and British Raj.
India Year Book (Current Affairs)
The book is prepare by the Publication Division of the Indian Government, and has detailed information about current affairs.
One of the most recommened books by all toppers, NCERT books have vast knowledge pool with easy language.
Economic Survey by the Ministry of Finance (Economy)
The book cntains most authoritative and is the most updated source on India's economy, and hence is highly recommended.