Which is the longest national highway in India?
D
Correct answer
Explanation
National Highway 7 (now renumbered as NH 44) spanning from Varanasi to Kanyakumari is the longest national highway in India at approximately 2,369 km. It connects North India to South India and passes through multiple states. NH 5 (Kolkata to Chennai) and NH 4 (Mumbai to Chennai) are also major but shorter highways.