What are some features of India's longest rail-road bridge?
PM Narendra Modi on Tuesday inaugurated the 4.94-km-long Bogibeel bridge, India's longest rail-road bridge, which would cut the travel time between Assam's Dibrugarh to Delhi by three hours. Further, the bridge reduces the distance between Dibrugarh and Dhemaji near Arunachal Pradesh border by about 400 km. Costing â¹5,900 crore, Bogibeel is built for a serviceable period of 120 years.