Bangalore Metro’s TBM Vindhya Records Breakthrough at Pottery Town

Larsen & Toubro’s Tunnel Boring Machine Vindhya (DZ671) on Thursday afternoon recorded its second breakthrough at Pottery Town Station for Bangalore Metro’s 21.386 km Pink Line (Reach 6).

This Ø6.67m CRCHI slurry machine is part of the Bangalore Metro Phase 2 project’s 2.884 km package RT-03 (Shivajinagar – Tannery Road) which was awarded by the Bangalore Metro Rail Corporation Ltd (BMRCL) in February 2019.

Waiting… – Photo via Pranay Mukherjee

After completing the 862m Cantonment – Shivajinagar south-bound tunnel in October 2021, Vindhya was recommissioned in February 2022 to build the 906.702m Cantonment – Pottery Town Station section’s south-bound tunnel.

Route of RT03 – view Bangalore Metro Phase 2 info & route map
Tada! – Photo via Anuradha Shaw

L&T’s official tunneling estimate for this drive was 280 days and they completed tunneling within just 184 days.

Photo via Anuradha Shaw


The machine will now be dragged through the station box and commissioned on its third and final 710.64m assignment towards Shadi Mahal TBM Retrieval Shaft, located south of Tannery Road Station.

Speaking of Shadi Mahal, ITD Cem’s TBM Tunga was supposed to arrive there from the north-side on Friday but I hear it will now make its breakthrough on the 24th.

With this development, approximately 53.3% of tunneling work for Phase 2 (total scope: 20,855m) has been completed with 10 out of 26 breakthroughs recorded: 3 on Package RT-01 by Afcons, 2 on RT-02 by L&T, 4 on RT-03 by L&T, and 1 on RT-04 by ITD Cementation.

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Global traveler who prefers mass rapid transit

10 Responses to "Bangalore Metro’s TBM Vindhya Records Breakthrough at Pottery Town"

  1. Gaurav says:

    Hey TMRG
    I read that Noida jewar airport metro DPR has been submitted by DMRC.
    Are you planning to cover this news?

  2. Subbu says:

    Congratulations L&T. Hope we can see some light at the end of the Tunnel

  3. Arun Shankar C says:

    Hi Tmrg, what’s your thoughts about whitefield biappanahalli metro? Is there any possibility of it opening for operations before next march?

    • TMRG says:

      March seems tight, but they might pull it off if they can trains from BYP to cross over New Years.

      The Tin Factory gap is being rapidly plugged but I hear of delays in the arrival of girders.

  4. Dd says:

    Rolling stock will delay this project

  5. Namma guy says:

    Dates are wrong here

    After completing the 862m Cantonment – Shivajinagar south-bound tunnel in October 2021, Vindhya was recommissioned in February 2021

  6. Subodh says:

    Any news about Bhadra TBM breakthrough. Poor ITD got the worst section in terms of geology. It seems like their section will be the last to be completed.


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