India Plans First Underwater Road–Rail Tunnel Under Brahmaputra
Bhubaneswar: India is set to build its first underwater twin-tube road and rail tunnel beneath the Brahmaputra River, linking Assam with Arunachal Pradesh in a landmark infrastructure project valued at ₹18,662 crore. The 34-km integrated corridor will feature a four-lane highway and a railway line, with cross passages every 500 metres to ensure emergency evacuation…