Q. How many Jharkhand districts share a boundary with Bihar?
Answer: 8
Notes: Jharkhand shares its northern boundary with Bihar. The districts bordering Bihar include Palamu, Garhwa, Latehar, Chatra, Hazaribagh, Koderma, Giridih, and Dumka, totaling 8 districts. These districts lie along Jharkhand's northern frontier after the state's formation in 2000. Other Jharkhand districts border West Bengal, Odisha, and Chhattisgarh. The adjacency is confirmed by geographic and administrative maps post the bifurcation of Jharkhand from Bihar in 2000.