अजातशत्रु ने अवन्ती के हमले से बचने के लिए किलेबंदी की थी , उसने वह किला कहाँ बनवाया था ? - Ajatashatru had fortified to avoid the attack of Avanti, where did he build that fort? - Ajatashatru ne Avanti Ke Hamle Se Bachne Ke Liye Kilebandi Ki Thi , Usane Wah Kila Kahan Banvaya Tha ? Bihar Gk in hindi, BPSC Bihar Ancient Histroy Vaishali Me question answers in hindi pdf Ang Me questions in hindi, Know About Pataliputra Me Bihar Gk online test Bihar Gk notes in hindi quiz book rajgrih Me