India’s First Underwater Road-Cum-Rail Tunnel: Assam Set to Make History with ₹18,662 Crore Mega Corridor
India is preparing to enter a new era of infrastructure development with the approval of its first-ever underwater road-cum-rail tunnel , to be built beneath the mighty Brahmaputra River in Assam. Valued at ₹18,662 crore , this ambitious project will connect Gohpur and Numaligarh , dramatically improving connectivity across the Northeast and reshaping the region’s economic future. Once completed, the corridor is expected to slash travel time, reduce logistics costs, strengthen regional trade, and generate around 80 lakh person-days of employment . For Assam and neighboring northeastern states, this project is being seen as a transformational leap rather than just another transport link. A Historic First for India The approved project will be India’s first underwater tunnel that carries both road and rail traffic . Globally, such projects are extremely rare, and officials note that this will be only the second underwater tunnel of its kind in the world combining road and rail in a si...