|Length||3,024 km (1,879 mi)|
|North end||Agra, Uttar Pradesh|
|Countries||India, Sri Lanka|
|Asian Highway Network
It passes through Indian cities of Agra (AH1), Gwalior (AH47), Nagpur (AH46), Hyderabad and Bangalore (AH45, AH47), Madurai. The road briefly ends at Rameswaram before starting in Sri Lanka at Talaimannar and passes through Mannar, Anuradhapura, Dambulla (AH44), Kurunegala, Kandy, Colombo, Galle and Matara.
The route shares some portions of various Indian National Highways. The route passes through Indian states of Uttar Pradesh, Rajasthan, Madhya Pradesh, Maharashtra, Telangana, Andhra Pradesh, Karnataka, and Tamil Nadu.
The route shares portions of the following Sri Lankan highways: