Hello dear student

Some important books for UPSC :-

• NCERT Class VI – Our Past.
• NCERT Class VII – Our Past -I.
• NCERT Class VIII – Our Past II and III.
• NCERT Class IX – India and the Contemporary World – I.
• NCERT Class X – India and the Contemporary World – II.
• NCERT Class XI – Themes In World History.

please visit the link for more information all details available in this link please visit

https://competition.careers360.com/articles/books-for-upsc-ias

Hope that's helpful

Best of luck