On 16/10/2020 MMRC  achieved a 33rd breakthrough with the 653-m long tunnel from Churchgate to Hutatma Chowk station for the metro Line 3 in Mumbai.  It is the first TBM breakthrough inside the NATM tunnel that is using a Robbins-made Dual mode hard rock TBM, which has completed this downline stretch in 275 days using 502 rings.

This unique station, in the vicinity of Hutatma Chowk, is being built by using a combination of Cut-and-Cover and New Austrian Tunnelling Method (NATM). This station will provide accessibility to the business centres of South Mumbai. The overall progress of Hutatma Chowk station is 53%. The total tunnelling amount of the project completed is 88% and civil work is 60%. For further information please click  in/77 for the tunnelbuilder archive, also visit https://www.mmrcl.com/en. 43/20.