National Highway 19 (India, old numbering)

National Highway 19 or NH 19, (currently known as NH 31), is a National Highway in India that links Ghazipur in Uttar Pradesh with Patna in Bihar. This 240 km-long route passes through Ballia, Chhapra, Sonpur, Iduvoi, and Hajipur.

Of its total length 240 km, the National Highway 19 traverses 120 km in Uttar Pradesh and the rest 120 km in Bihar.