If you are looking for the printed version or official guidebooks:
: Older or donated editions of Rajniti Vigyan titles can occasionally be borrowed or viewed on the Internet Archive . Physical Purchase Sources Download JPH class rajniti vigyan pdf
Since JPH guides are primarily based on the NCERT curriculum, you can download the core syllabus textbooks for free: JPH Guide of Political Science for Class 12 - Raajkart.com If you are looking for the printed version