National Highway 17 (India)(old numbering)

National Highway 17, commonly referred to as NH 17, is a busy National Highway in India that runs roughly north–south along the western coast of India, parallel to western ghats. It connects Panvel (south of Mumbai city) to Edappally (in Kochi city, passing through the states of Maharashtra, Goa, Karnataka, and Kerala. It is the 7th longest highway in India with a length of 1,269 km (789 mi). It has been now renumbered as NH-66.

The highway is going on a major overhaul in Karnataka, where the state government has accepted the NHAI's request of international standard, 60-metre-wide national highway with grade separators. The complete stretch from the Goa border (near Karwar) to the Kerala border (near Talapady) is being widened to four lanes, with space to accommodate future expansion to six lanes. There was protests for a narrower stretch from the people who will lose lands, but the Karnataka government has not heeded to the public protests.

But, road widening in other states such as Kerala and Goa has not started and Kerala has requested for a narrower 45 metre stretch in the state. Initially Kerala demanded for a 30-metre-wide highway, but NHAI threatened to stop work in the state and concentrate on the other states. Finally, National Highway Authority of India (NHAI) has pulled out from widening of this highway in Kerala, because of state government's lethargic attitude. Widening of this highway into a 60-meter wide, 4-lane, international standard highway is in progress in Karnataka and Maharashtra. Maharashtra section of this highway will be converted into a concrete road with 4-lane.