Undersea tunnel for Mumbai-Ahmedabad bullet train corridor

27 Jan 2021 CW Staff

The National High Speed Rail Corporation Limited (NHSRCL) told media sources that seven Indian companies had participated in the pre-bid meeting for constructing the undersea tunnel of the corridor. NSHRCL also said that the tender for the construction of the tunnel has been floated and bids are invited till 19 February 2021.

The bullet train project will have a 21 km long underground corridor from Bandra Kurla Complex (BKC) to Kalyan Shilphata in Maharashtra.

NSHRCL said that about 7 km of this underground corridor is under the Thane creek. Out of this, a 1.8 km stretch will be developed under the sea bed, while the remaining part of the section is to be built under the mangroves marshland on either side of the creek.

The tender has been floated for tunnel development, which includes testing and commissioning for the double-line high-speed railway for the project using a tunnel boring machine (TBM) and a New Austrian Tunnelling Method (NATM).

4th Indian Cement Review Conference 2021

17-18 March

Click for event info

A geotechnical investigation of the undersea tunnel area was carried out earlier by a team of engineers from Japan's Kawasaki Geological Engineering firm, NHSRCL, and Rail India Technical and Economic Service Ltd (RITES).

In order to study the sea bed structure, a static refraction technique (SRT) survey was carried out by the team, involving firing a high energy sound wave towards the seabed from beneath the water surface as well as mapping the refracted sound wave to determine the density of the rock under the sea bed.

Also read: Mumbai-Ahmedabad bullet train gets environmental clearance

Image Source

Your next big infra connection is waiting at RAHSTA 2025 – Asia’s Biggest Roads & Highways Expo, Jio World Convention Centre, Mumbai. Don’t miss out!

During the pre-bidding stage for the construction of the undersea tunnel for the ambitious Mumbai Ahmedabad High Speed Rail (MAHSR), at least seven Indian companies have expressed their interest for the works, said officials. The National High Speed Rail Corporation Limited (NHSRCL) told media sources that seven Indian companies had participated in the pre-bid meeting for constructing the undersea tunnel of the corridor. NSHRCL also said that the tender for the construction of the tunnel has been floated and bids are invited till 19 February 2021. The bullet train project will have a 21 km long underground corridor from Bandra Kurla Complex (BKC) to Kalyan Shilphata in Maharashtra. NSHRCL said that about 7 km of this underground corridor is under the Thane creek. Out of this, a 1.8 km stretch will be developed under the sea bed, while the remaining part of the section is to be built under the mangroves marshland on either side of the creek. The tender has been floated for tunnel development, which includes testing and commissioning for the double-line high-speed railway for the project using a tunnel boring machine (TBM) and a New Austrian Tunnelling Method (NATM).4th Indian Cement Review Conference 202117-18 March Click for event info A geotechnical investigation of the undersea tunnel area was carried out earlier by a team of engineers from Japan's Kawasaki Geological Engineering firm, NHSRCL, and Rail India Technical and Economic Service Ltd (RITES). In order to study the sea bed structure, a static refraction technique (SRT) survey was carried out by the team, involving firing a high energy sound wave towards the seabed from beneath the water surface as well as mapping the refracted sound wave to determine the density of the rock under the sea bed. Also read: Mumbai-Ahmedabad bullet train gets environmental clearanceImage Source

Real Estate

05 Sep 2025

Vitizen Hotels Signs Deal at Manyata Tech Park

Vikram Kamats Hospitality, as part of its ongoing expansion in key metropolitan markets, announced that its material subsidiary, Vitizen Hotels, has signed a long-term lease agreement for a 45-key hotel property at Manyata Tech Park, Bengaluru.Strategically located in the city’s prominent IT hub, the property is well-positioned to serve corporate travelers, business professionals, and long-stay guests. The addition aligns with the company’s asset-light growth model, leveraging long-term leases to expand its footprint in high-demand urban markets.The hotel is expected to strengthen the comp..

Infrastructure Transport

05 Sep 2025

CONCOR Signs MoU with BPIPL to Operate Container Terminal at Bhavnagar Port

Container Corporation of India (CONCOR) has signed a Memorandum of Understanding (MoU) with Bhavnagar Port Infrastructure (BPIPL) on September 4, 2025, in New Delhi to operate and maintain the upcoming container terminal at the northside of Bhavnagar Port, Gujarat.BPIPL had earlier entered into an agreement with the Gujarat Maritime Board (GMB) in September 2024 for the port’s development. Under this arrangement, 235 hectares of land has been leased to BPIPL for 30 years, with provision for expansion by an additional 250 hectares.The new terminal is expected to significantly enhance logistic..

Infrastructure Transport

05 Sep 2025

Concord Launches India’s First Indigenous Zero-Emission Rail Propulsion

Concord Control Systems (CCSL), a leader in embedded electronics and critical rail technologies, has announced the development of India’s first fully indigenous zero-emission propulsion system, marking a significant step toward the country’s railway electrification and net-zero goals for 2030.Powered by Lithium Iron Phosphate (LFP) batteries and featuring a DC chopper-based drive, the propulsion system eliminates idling losses common in diesel engines, offering higher efficiency, lower costs, and zero emissions.What sets this innovation apart is its completely indigenous design. Except for..