National Highway 31 (India)
|Length||968 km (601 mi)|
|States||Uttar Pradesh, Bihar, West Bengal|
|Lalganj, Raebareli, Salon, Pratapgarh, Machhlishahr, Jaunpur, Varanasi, Ghazipur, Ballia, Chhapra, Hajipur,Patna, Bakhtiyarpur, Mokama, Begusarai, Khagaria, Bihpur, Naugachia, Gosaingaon, Kursela, Kora, Katihar, Harishchanderpur|
National Highway 31 (NH 31) is a National Highway in India.It starts from Unnao in Uttar Pradesh and passes through Bihar and terminates at its crossing with State Highway 10 (West Bengal) at Samsi near Pandua in Malda district of West Bengal. SH 10 (WB) connects Samsi to NH 12.
- "Rationalisation of Numbering Systems of National Highways" (PDF). New Delhi: Department of Road Transport and Highways. Retrieved 3 April 2012.