Hi,

I guess you want the NCERT Political Science Book for class 12th. You can get it directly from the NCERT website. Also, you can get the mobile app for NCERT which contains all the NCERT books including the supplementary books by NCERT.

For the Political Science book, you can refer to this link: https://ncert.nic.in/textbook.php?gess3=0-9

(You will have to copy this link in the browser)

I hope this helped you.