Another major constraint of surface infrastructure projects in the NE states has to be linked up with parallel developments in the neighboring countries, particularly with Bangladesh. The restoration and extension of pre-partition land and river transit routes through Bangladesh is vital for transport infrastructure in NE states. Other international cooperation, such as, revival of Ledo road (Stilwell road) connecting Ledo in Assam to northern Myanmar and extended up to Kunming in south-eastern China, Kaladan Multimodal Transit Project and Trans-Asian Railways, could open up an eastern window for the land-locked NE states of India. Various regional initiatives, such as, the Bangladesh–China–India–Myanmar (BCIM) and Bay of Bengal Initiative for Multi-Sectoral Technical and Economic Cooperation (BIMSTEC), India–Myanmar–Thailand Trilateral Highway (IMTTH) project to link the markets of South and Southeast Asia, are in very initial stages.