Hello Nazakat,

To crack challenging examinations like the UPSC exam, good study resources are a must.

Here are some of the best books to refer to for acing the IAS examination:

Indian Polity for Civil Services Examinations by M. Laxmikanth (Polity)

Indian Art and Culture by Nitin Singhania. (Culture)

Oxford School Atlas by Oxford Publishers. (Geography)

Certificate Physical and Human Geography by Goh Cheng Leong. (Geography)

Indian Economy by Ramesh Singh. (Economy)

Economic Survey by the Ministry of Finance. (Economy)

India Year Book (Current Affairs)

A Brief History of Modern India by Rajiv Ahir (Modern India)

General Studies Paper 2 Manual by MHE (CSAT)

NCERT Books

Hope this helps you! We wish you the best for your future endeavours!

Regards