National Highway 116 (NH 116) is a National Highway of India entirely within the state of West Bengal that connects Kolaghat in Purba Medinipur district with Haldia in Purba Medinipur district. The total length of NH 116 is . NH-116 is a spur road of National Highway 16. The primary purpose of this national highway is to provide connectivity to Haldia Port. Previously this route was numbered as National Highway 41.
NH 116 connects Kolaghat, Mecheda, Tamluk, Nandakumar and Haldia port.
There is only 1 toll plaza on this highway at Sonapetya near Tamluk