J Kumar Lowers Delhi Metro Silver Line DC-08’s 1st TBM Shalini

J Kumar Infraprojects on Monday started lowering parts of TBM S64B (Shalini) – the first tunnel boring machine for 23.622 km Delhi Metro Silver Line‘s Package DC-08 at Kishangarh Station’s western-end.

This refurbished 6.61m diameter Terratec Earth Pressure Balance (EPB) machine will be the first of three machines to be commissioned by J Kumar for building twin tunnels on 65.1 km Delhi Metro Phase 4 project‘s 6.116 km Package DC-08 between Aerocity – Kishangarh.

Prior to this, J Kumar – CRTG JV had deployed it as Godavari-4 to build Mumbai Metro Line-3 UGC-05’s tunnels between 2018-2020. Following extensive refurbishment, the machine passed factory acceptance tests (FAT) in April 2023 at J Kumar’s yard in Mumbai’s Chenna village on Ghodbunder Road.

Photo by Swatantra Parashar

Delhi Metro Rail Corporation (DMRC) had awarded J Kumar with Phase 4’s Rs. 1611.74 crore contract for Package DC-08 in March 2022 with a 42 month deadline.

J Kumar’s 6.116 km Aerocity – Kishangarh section is on the western-end of the Silver Line and comprises of twin tunnels, and 4 stations at Aerocity, Mahipalpur, Vasant Kunj & Kishangarh from chainage (-) 760 mt. to 5356.285 mt.

Indicative alignment of Delhi Metro Silver Line’s Package DC-08 – view Phase 4 route map & info
Photo by Swatantra Parashar
Photo by Swatantra Parashar

The rest of S64B’s shields and cutterhead will be lowered in the coming days and assembled for commissioning towards Vasant Kunj Station, which I expect should happen in early July.

Besides this machine, J Kumar will deploy another refurbished machine (S63B from Mumbai’s Line-3) and a brand new machine whose serial number I’m currently unaware of. Both will be launched from Aerocity Station – one westward towards the permanent TBM shaft and one eastward to Mahipalpur.

Speaking of Mahipalpur, here’s a recent snap showing the progress of excavation:

Photo by Himanshu Sharma

For more updates, check out the Delhi Metro section or my Home Page! Sign up for free instant email notifications on new posts over here. Like this post? Get early-access to all updates and support the site over here.


written by

Global traveler who prefers mass rapid transit

2 Responses to "J Kumar Lowers Delhi Metro Silver Line DC-08’s 1st TBM Shalini"

  1. Deen dayal kushwaha says:

    Civil engineering

  2. Rahul singh says:



Leave a Reply

Want to join the discussion?
Feel free to contribute!

Leave a Reply

Your email address will not be published. Required fields are marked *