बिहार राज्य का क्षेत्रफल भारत के क्षेत्रफल का कितना प्रतिशत है ? - The area of Bihar state is what percentage of the area of India? - Bihar Rajya Ka Shetrafal Bhaarat Ke Shetrafal Ka Kitna Pratishat Hai ? Bihar Gk in hindi, Geographical Structure 2.05 question answers in hindi pdf 2.86th questions in hindi, Know About 2.08 Bihar Gk online test Bihar Gk notes in hindi quiz book 3.02