Centre greenlights water metro feasibility study in three cities; Assam CM thanks Sonowal April 11, 2025 Maritime, Inland Waterways, Trending News, Water Transport GUWAHATI : Assam Chief Minister Shri Himanta Biswa Sarma, on Wednesday, expressed gratitude to Union Minister of Ports, Shipping and Waterways, Shri Sarbananda Sonowal, for approving a technical feasibility study to explore water metro