Asian Highway 48 or AH48 is a transnational route in India and Bhutan, running 276 kilometres (171 mi) from Changrabandha in India to Thimphu in Bhutan.
[1][2][3] India/Bangladesh border at Changrabandha to Jaigaon at India/Bhutan border.
[4][5] India/Bhutan border at Phuentsholing to national capital Thimphu.
AH48 is also the national highway number given for this route.
[6]