Published - February 14, 2026 05:20 pm IST - GUWAHATI Prime Minister Narendra Modi and Assam Chief Minister Himanta Biswa Sarma during a BJP workers’ meeting, in Guwahati, on February 14, 2026. | Photo Credit: PTI Assam Chief Minister Himanta Biswa Sarma on Saturday (February 14, 2026) said the Centre's approval for the country's first twin-tube underwater road-cum-rail tunnel in the State was a historic milestone. The Cabinet Committee on Economic Affairs, chaired by Prime Minister Narendra Modi, approved the construction of the twin-tube underwater road-cum-rail tunnel between Gohpur and Numaligarh in Assam at a total capital cost of ₹18,662 crore.