India's 10 longest national highway

Out of the longest highway in India, you can reach the southern tip of the northern point of India. Know the ten longest highways in India. 10. NH 19 Old Name: NH 20 Distance: 1,435 km Marg: Kolkata 9. NH 66 Old Name: NH 17 Distance: 1,622 km Port 6. Ibrahimpatnam from Andhra Pradesh to Ibrahimpatnam 4. NH 52: 2,317 km: 2,317 km. Name: NH 8 Distance: 2,807 km Marg: Delhi to Chennai 2.