बिहार में पहली बार राष्ट्रपति शासन कब लागू हुआ ? - When was the President's rule imposed for the first time in Bihar? - Bihar Me Pehli Baar President Shashan Kab Lagu Hua ? Bihar Gk in hindi, Administration Year 1969 Me question answers in hindi pdf Year 1970 Me questions in hindi, Know About Year 1968 Me Bihar Gk online test Bihar Gk notes in hindi quiz book Year 1971 Me