National Highway 47 (NH 47) is an inter-state highway that serves as a link between
Kerala and
Tamil Nadu. Stretching from
Salem to
Kanyakumari, it enters Kerala at Walayar and goes up till Kalyikkavila.
NH 47 is a double-lane road, except in
Alappuzha,
Kollam and
Thiruvananthapuram in Kerala and in
Kanyakumari District in Tamil Nadu. It intersects with NH 17 at
Ernakulam, NH 208 at
Kollam, NH 47A at Kudannoor near
Kochi, NH 213 at
Palakkad, NH 67 and 209 at
Coimbatore and NH 7 at Salem. The 640 km-long road touches Coimbatore,
Thrissur, Ernakulam, Thiruvananthapuram and
Nagercoil.
