Pariksha Vani Paristhitiki Evam Paryavaran (20th Edition) 2026-27 (Hindi Medium)

🌿 Complete Guide for UPSC & State Civil Services! Ye 20th edition ka Pariksha Vani Ecology & Environment book provide karta hai NCERT-based study material ke saath practice question papers specially UPSC aur State Civil Services exams ke liye. Hindi me likha gaya, ye book help karega aspirants ko ecology, environment, biodiversity, climate change, aur sustainable development ke important concepts samajhne me. Saath hi previous years ke questions aur model papers bhi include kiye gaye hain for effective exam practice aur revision. Perfect for students jo aim kar rahe hain high scores in GS Paper 1 & 3. Key Features: ✅ NCERT-based study material for Ecology & Environment ✅ Question papers for UPSC & State Civil Services exams ✅ Hindi me likha gaya for easy understanding ✅ Includes previous years’ questions & model practice papers ✅ Covers biodiversity, climate change, pollution, sustainable development aur current environmental issues ✅ 19th Edition with updated content.