बिहार राज्य में वर्ष 2005-06 में बॉक्साइट का सुरक्षित भण्डार था ? - What was the reserve of bauxite in the state of Bihar in the year 2005-06? - Bihar Rajya Me Year 2005 - 06 Me Boxite Ka Surakshit Bhannda Tha ? Bihar Gk in hindi, Government Schemes 21.1 Lakh Ton question answers in hindi pdf 26.6 Lakh Ton questions in hindi, Know About 3001.2 Lakh Ton Bihar Gk online test Bihar Gk notes in hindi quiz book 40.1 Lakh Ton