Illuminated longest rail-cum-road bridge over the Brahmaputra river at Bogibeel, in Dibrugarh.

A view of India's longest rail-road bridge 'Bogibeel Bridge' in Dibrugarh a day before its inauguration by Prime Minister Narendra Modi.

Prime Minister Narendra Modi flags off a passenger train after inaugurating the Bogibeel Bridge, the longest rail-cum-road bridge on Brahmaputra river, in Dibrugarh.

Prime Minister Narendra Modi views a model of the newly inaugurated Bogibeel Bridge at an exhibition in Dibrugarh.

Prime Minister Narendra Modi waves at people from the Bogibeel Bridge, the longest rail-cum-road bridge on Brahmaputra river, after it was inaugurated by him, in Dibrugarh.

Prime Minister Narendra Modi along with Assam Governor Jagdish Mukhi and Chief Minister Sarbananda Sonowal walks on the Bogibeel Bridge, the longest rail-cum-road bridge on Brahmap...