Delhi Metro To Begin Ultrasonic Rail Safety Testing

15 Oct 2025 CW Team

A tender issued on 7 October invites agencies to carry out Ultrasonic Flaw Detection (USFD) testing of Alumino-Thermic (AT) welds and rails using B-scan machines on six metro lines, including the Airport Express Line.

The contract, valued at around Rs 18.9 million, will be implemented over a three-year period. According to the tender, the project aims to identify hidden defects in rails and welds that could otherwise lead to operational disruptions or safety risks.

“Ultrasonic flaw detection will be deployed for rapid, non-destructive testing (NDT) of rail tracks to locate internal issues such as cracks and corrosion,” the DMRC said in the tender document.

The testing will cover Lines 3 and 4 (Blue Line) — from Noida to Dwarka and Yamuna Bank to Vaishali — which are among the network’s oldest routes and have recently experienced technical issues. It will also include Line 6 (Violet Line) from Kashmere Gate to Raja Nahar Singh, Line 8 (Magenta Line) from Janakpuri West to Botanical Garden, Line 9 (Grey Line) from Dwarka to Dhansa Bus Stand, and the Airport Express Line.

The decision follows multiple technical faults in recent months. On 1 September, the Metro recorded its third service disruption in a week, affecting the Yellow and Blue Lines, which led to severe overcrowding at several stations. A signalling fault between Barakhamba and Indraprastha and another near Millennium City Centre, Gurugram, caused trains to switch to manual operations, slowing down services.

Earlier, on 21 May, Blue Line services were delayed due to a technical issue, while on 24 August, a similar snag disrupted the Red Line.

According to DMRC, periodic ultrasonic testing is part of its preventive maintenance programme, aimed at ensuring the safety, efficiency, and reliability of one of the world’s busiest metro systems, which carries millions of passengers daily.

Following a series of technical glitches that recently disrupted services and caused overcrowding, the Delhi Metro Rail Corporation (DMRC) has announced plans to conduct ultrasonic testing of rail welds to enhance safety and reliability across its network. A tender issued on 7 October invites agencies to carry out Ultrasonic Flaw Detection (USFD) testing of Alumino-Thermic (AT) welds and rails using B-scan machines on six metro lines, including the Airport Express Line. The contract, valued at around Rs 18.9 million, will be implemented over a three-year period. According to the tender, the project aims to identify hidden defects in rails and welds that could otherwise lead to operational disruptions or safety risks. “Ultrasonic flaw detection will be deployed for rapid, non-destructive testing (NDT) of rail tracks to locate internal issues such as cracks and corrosion,” the DMRC said in the tender document. The testing will cover Lines 3 and 4 (Blue Line) — from Noida to Dwarka and Yamuna Bank to Vaishali — which are among the network’s oldest routes and have recently experienced technical issues. It will also include Line 6 (Violet Line) from Kashmere Gate to Raja Nahar Singh, Line 8 (Magenta Line) from Janakpuri West to Botanical Garden, Line 9 (Grey Line) from Dwarka to Dhansa Bus Stand, and the Airport Express Line. The decision follows multiple technical faults in recent months. On 1 September, the Metro recorded its third service disruption in a week, affecting the Yellow and Blue Lines, which led to severe overcrowding at several stations. A signalling fault between Barakhamba and Indraprastha and another near Millennium City Centre, Gurugram, caused trains to switch to manual operations, slowing down services. Earlier, on 21 May, Blue Line services were delayed due to a technical issue, while on 24 August, a similar snag disrupted the Red Line. According to DMRC, periodic ultrasonic testing is part of its preventive maintenance programme, aimed at ensuring the safety, efficiency, and reliability of one of the world’s busiest metro systems, which carries millions of passengers daily.

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..

Infrastructure Urban

02 Jun 2026

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..

Infrastructure Transport

02 Jun 2026

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..