Pariksha Vani Jeev Vigyan (Biology) Hindi Medium

This Hindi-medium guide, authored by S.K. Ojha and published by Baudhik Prakashan (Pariksha Vani), is a well-structured and NCERT-aligned resource tailored for aspirants preparing for competitive exams such as UPSC, PCS, SSC, TET, RRB, and defence services.