बिहार के किस जिले की सीमा नेपाल से लगने वाले जिलों में सर्वाधिक लंबी है ? - Which district of Bihar has the longest border among the districts adjoining Nepal? - Bihar Ke Kis Jile Ki Seema Nepal Se Lagne Wale Zilon Me Sarwaadhik Lambi Hai ? Bihar Gk in hindi, Geographical Structure Supaul question answers in hindi pdf Pashchimi Champaran questions in hindi, Know About SitaMadhi Bihar Gk online test Bihar Gk notes in hindi quiz book KishanGanj