बिहार के प्रथम मुख्यमंत्री कौन थे ? - Who was the first Chief Minister of Bihar? - Bihar Ke Pratham MukhyaMantri Kaun The ? Bihar Gk in hindi, Vibhootiyan Shrikrishna Singh question answers in hindi pdf Mohammad yunoos questions in hindi, Know About Anugrah Narayann Singh Bihar Gk online test Bihar Gk notes in hindi quiz book Uparyukt Me Se Koi Nahi