From Patna taxi to Hajipur Junction (HJP), train to Raxual Junction (RXL), then drive to Kathmandu. 8 h 21 min ₹3,029. From Patna Junction (PNBE) train to Jaynagar (JYG), drive to Siraha, then Khoriya Deluxe to Gaushala. 16 h 36 min ₹1,614. From Patna drive to Kathmandu. 5 h 21 min ₹2,812.