The B.P. Koirala Highway i n Nepal

 The B.P. Koirala Highway, also known as the Banepa Bardibas Highway, is a highway in eastern Nepal. It links Kathmandu Valley with the Eastern Terai region. It is named after the former leader of Nepal, Bishweshwar Prasad Koirala. This highway is the shortest link between Kathmandu valley and the Terai region in Nepal. Construction of the highway began on 1996 and after encountering different issues with materials, manpower and budget, the road was finally completed and handed over to the Nepalese government on 3 July 2015.[1]
 

Construction work on the 160 km highway had begun with a financial assistance of the Japanese government. Although the Highway has been opened for vehicular movement, it is yet to formally come into operation.According to the road project, the Japanese construction company Hazama Ando JV had been preparing to handover the road to the government on March 15, 2015.
This route is vitally important in that it is the only major eastbound exit from highly populated and quake-prone Kathmandu Valley; it is critical to be completed for emergency evacuation and relief purposes. Currently, Kathmandu relies solely upon one congested westward "highway" for its road links to the south: India, the Terai region, and Bangladesh. The capital region has no rail or navigable river links. Despite this, the highway criss-crosses through mountain regions with hairpin turns of widths of one
 

 The highway has existed in various stages for decades, with large unimproved portions. The 37 km section of the lowlands between Bardibas and Sindhuli has been in operation for many years, the 50 km section between Banepa and Nepalthok of Bagmati region was completed in 2005 with Japanese grant money. However, a major part linking the two improved regions was only completed in February 2009, funded with Japanese loans and contractors