L&T’s TBM Urja achieves third breakthrough of Bengaluru Pink Line

13 Jan 2023 CW Team

Larsen & Toubro’s Tunnel Boring Machine Urja (DZ670) achieved its third and final breakthrough at the Shadi Mahal TBM Retrieval Shaft on Bengaluru Metro‘s Pink Line (Reach 6), which is 21.386 km in length on 10 January 2023. This marks the 5th in a series of 6 tunnel breakthroughs planned for the 73.92 km Phase 2 project’s Package RT-03.

The Bengaluru Metro Rail Corporation (BMRCL) awarded the construction of the 2.884 km twin tunnels between Shivajinagar and Tannery Road in February 2019. After its second breakthrough at Pottery Town Station in June 2022, TBM Urja, a Ø6.67 m CRCHI slurry machine, began its final drive in July to build the 688.5 m northbound tunnel towards Shadi Mahal.

L&T’s official completion estimate for the tunnelling drive at the start was 170 days, but they easily beat it. However, even though the milestone was achieved, celebrations were muted due to a fatal construction accident on the 56 km Blue Line at HBR Layout earlier in the day. Urja (Machine DZ670) was the first of nine commissioned for Phase 2 in July 2020, and it started its first drive of 860m from Cantonment Station to Shivajinagar. Its sister machine TBM Vindhya (DZ671), started its third and final drive towards Shadi Mahal Shaft in September 2022 and is expected to finish in March.

According to BMRCL’s December newsletter, by November-end, 65.65 per cent of tunnelling work had been completed for Phase 2 (total scope: 21,041m), with a total of 17 out of 26 tunnel breakthroughs recorded 5 on Package RT-01 by Afcons, 3 on RT-02 by L&T, 5 on RT-03 by L&T, and 4 on RT-04 by ITD Cementation.

Also Read
First nine months of FY23 records Ajmera Realty sale of 6.94 billion
Delhi-NCR Developers bat for exemption from the construction ban

Infrastructure Transport

06 Feb 2026

Lucknow Metro East-West Corridor Consultancy Contract Awarded

The Uttar Pradesh Metro Rail Corporation has awarded the first construction-related consultancy contract for the Lucknow Metro East West Corridor to a joint venture of AYESA Ingenieria Arquitectura SAU and AYESA India Pvt Ltd. The firm was declared the lowest bidder for the Detailed Design Consultant contract for Lucknow Metro Line-2 under Phase 1B and the contract was recommended following the financial bid. The contract is valued at Rs 159.0 million (mn), covering design services for the corridor. Lucknow Metro Line-2 envisages the construction of an 11.165 kilometre corridor connecting Cha..

Div Com Kashmir Urges Fast Tracking Of Jhelum Water Transport Project

The Divisional Commissioner of Kashmir has called for the fast-tracking of the Jhelum water transport project, urging district administrations and relevant agencies to accelerate planning and clearances. In a meeting convened at the divisional headquarters, the commissioner instructed officials from irrigation, public health engineering and municipal departments to prioritise the project and coordinate survey and design work. The directive emphasised removal of administrative bottlenecks and close monitoring to ensure timely mobilisation of resources and contractors. Officials were told to in..

Interarch Reports Strong Q3 And Nine Month Results

Interarch Building Solutions Limited reported unaudited results for the third quarter and nine months ended 31 December 2025, recording strong revenue growth driven by execution and a robust order book. Net revenue for the third quarter rose by 43.7 per cent to Rs 5.225 billion (bn), compared with Rs 3.636 bn a year earlier, reflecting heightened demand in pre-engineered building projects. The company’s total order book as at 31 January 2026 stood at Rs 16.85 bn, supporting near-term visibility. EBITDA excluding other income for the quarter increased by 43.2 per cent to Rs 503 million (mn),..