[1] It starts from Atari adjacent to India-Pakistan border and near Amritsar and terminates at Leh in Ladakh, via Manali in Himachal Pradesh.

Part of national Highway 3 runs through the upper reaches of Himachal Pradesh and Ladakh, crossing some high elevation mountain passes.

[4] Punjab border - Gagret, Amb, Nadaun, Hamirpur, Tauni Devi, Awah Devi, Sarkaghat, Kotli, Mandi, Kullu, Manali, Gramphoo, Kyelong - J & K border (208 km).

[6] Process for upgrading of road from two to four lanes on Jalandhar to Hoshiarpur section was started by NHAI to improve connectivity.

Traffic congestion is encountered at Adampur and Rama Mandi on this 58 km stretch.