CMRL has invited firms to bid for construction of twin tunnels and five underground stations between Kolathur and Nathamuni, one of the toughest and most challenging stretches in phase-2 due to the rocky soil conditions. The stretch of around 5.8km is the only underground section in corridor-5 from Madhavaram to Sholinganallur.

CMRL has issued a tender for an elevated corridor from Power House to Porur. As part of this tender, an integrated grate separator from Mugalivakkam to MIOT Hospital and an underpass at Vanuvampet would be constructed by the Metro rail.

CMRL has invited tenders for the construction of twin tunnels and 5 underground stations between Kolathur and Nathamuni of Chennai Metro’s new 47 km Line-5. The 5.8-km underground civil package will connect Madhavaram and Sholinganallur through 48 stations.

CMRL has issued the first major contract for building of stations from Power House till Porur. Larsen & Toubro bagged the contract for this work after emerging as the lowest bidder, quoting Rs. 1,035 crore for building nine stations and the viaduct.

CMRL has completed the preliminary report for the proposed Coimbatore Metro Rail project in Tamil Nadu. The report will be handed over to the state government for review and approval so that a detailed project report can be prepared. The preliminary feasibility study was conducted by French consultancy firm Systra MVA.

Technical bids have been opened for constructing around 42 km of tunnel works for Chennai Metro’s 45.81-km Line-3 (Madhavaram-SIPCOT). Four out of 8 firms have qualified after evaluation of technical bids. These are Gulermak Agir Sanayi Insaat ve Taahhut A.S, L&T, Shanghai Tunnel Engineering Co (Singapore) and Tata Projects.

Plans to construct Line-4 and Line-5 of the Chennai Metro Rail project under the Civil Contract Package C4-ECV-01, for which Larsen & Toubro Ltd, NCC Ltd, and a Hindustan Construction Company-KEC International joint venture have submitted the bids. The work relates to Phase 2 of the project.

Chennai Metro Rail’s Phase-I Extension project from Washermenpet to Wimco Nagar, which was delayed due to the pandemic, is likely to undergo trials by the beginning of next month. The extension, which covers a length of 9.051 km, was scheduled to open this June. The entire work now is likely to be completed by December.

Work on the Chennai Metro Rail Phase-2 Corridor-4 from Lighthouse to Poonamallee Bypass, which will connect core city localities, could begin soon. CMRL is in the final stages of appointing a general consultant. The consultancy service is funded by China-based Asian Infrastructure Investment Bank, which will lend Rs. 2,700 crore.