अंग्रेजों ने 1620 में बिहार में सर्वप्रथम कहाँ अपना व्यापारिक केन्द्र स्थापित करने का प्रयास किया था ? - Where did the British first try to establish their trading center in Bihar in 1620? - Angrejon ne 1620 Me Bihar Me Sarwapratham Kahan Apna Vyaparik Center Sthapit Karne Ka Prayas Kiya Tha ? Bihar Gk in hindi, Bihar Modern History Quiz Munger question answers in hindi pdf Purniya questions in hindi, Know About Alamganj Bihar Gk online test Bihar Gk notes in hindi quiz book Mehraura