किस यात्री ने पटना को मुगल साम्राज्य का दूसरा सबसे बड़ा नगर तथा उत्तरी भारत का सबसे बड़ा व्यापारिक केन्द्र बताया है ? - Which traveler has described Patna as the second largest city of the Mughal Empire and the largest trading center of northern India? - Kis Yatri ne Patana Ko Mugal Samrajy Ka Doosra Sabse Bada Nagar Tatha Uttari Bhaarat Ka Sabse Bada Vyaparik Center Bataya Hai ? Bihar Gk in hindi, Bihar Modern History Quiz peterMundi question answers in hindi pdf John Marshal questions in hindi, Know About Mainreek Bihar Gk online test Bihar Gk notes in hindi quiz book Taiverniye