Mumbai-Ahmedabad high-speed rail tunnel breakthrough

09 Oct 2023 CW Team

The National High-Speed Rail Corporation Limited (NHSRCL) celebrates a significant achievement as it marks the breakthrough of the mountain tunnel for the Mumbai-Ahmedabad High-Speed Rail corridor project. This remarkable feat stands as the first completed mountain tunnel, achieved in a remarkably short span of just 10 months.

Situated approximately 1 kilometre away from Zaroli Village in Umbergaon Taluka, within the Valsad district of Gujarat, this tunnel structure encompasses the tunnel itself, the tunnel portal, and other connecting elements such as the tunnel entrance hood.

The construction of this tunnel employs the New Austrian Tunnelling Method (NATM), involving a systematic process that includes:

1. Marking of drill holes on the tunnel face. 2. Drilling of holes. 3. Charging of explosives. 4. Controlled blasting. 5. Removal of muck (blasted rock pieces). 6. Installation of primary support, encompassing steel ribs, lattice girder, shotcrete, and rock bolts, tailored to the type of rock as assessed by geologists after each blast.

Salient Features of the Mountain Tunnel:

- Total Tunnel Length: 350 meters. - Diameter of Tunnel: 12.6 meters. - Height of Tunnel: 10.25 meters. - Tunnel Shape: Single tube horse-shoe shaped. - Number of Tracks: 2 tracks.

The completion of this mountain tunnel marks a significant step forward in the ambitious Mumbai-Ahmedabad High-Speed Rail project, promising enhanced connectivity and convenience for passengers in the future. The NHSRCL continues to work diligently towards the realisation of this transformative railway network.

Infrastructure Urban

02 Jun 2026

VECV Sales Rise 7.8 Per Cent In May 2026

VE Commercial Vehicles recorded sales of 7,978 units in May 2026, compared to 7,401 units in May 2025, registering growth of 7.8 per cent. This included 7,789 units from the Eicher brand and 189 units from the Volvo brand.Eicher branded trucks and buses reported sales of 7,789 units during the month, up 7.3 per cent from 7,258 units a year earlier. In the domestic commercial vehicle market, Eicher sales rose 9.1 per cent to 7,375 units from 6,758 units in May 2025.Exports declined 17.2 per cent to 414 units from 500 units in the corresponding month last year. Volvo Trucks and Volvo Buses recor..

Table Space Strengthens DESYN Leadership Team

Table Space has announced strategic leadership appointments within DESYN, its integrated Design and Build business, as it looks to strengthen operations across key enterprise and GCC markets in India. DESYN was launched as a strategic extension of Table Space’s workspace solutions portfolio to meet rising demand for agile, high-quality and rapidly deployable enterprise workspaces.Shruti Ookabhoy has joined DESYN as Executive Director and will lead the Design vertical, focusing on design capability, operational excellence and team development across markets. She brings over 22 years of experi..

Concord Associate Bags Rs 2.79 Bn Kavach Order

Concord Control Systems said its associate company, Progota India, has received a Rs 2.79 bn domestic order from Indian Railways for the supply, installation, testing and commissioning of on-board Kavach 4.0 loco equipment.The order is scheduled for execution within 12 months and strengthens Concord’s role in India’s railway safety and signalling ecosystem. Kavach is India’s indigenous automatic train protection system, designed to improve operational safety by helping prevent signal passing at danger and reducing collision risks.Gaurav Lath, Joint Managing Director, Concord Control Syst..