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CMRL begins Phase 2 tunnelling in Chetpet, Chennai
TBM Siruvani along with 7 other, constructs network of 12 twin tunnels
The deadline for submission was stated to be October 25, 2023
Identified roads include SH 62, SH 202, SH 71
The approval granted by the PMC includes a pivotal stretch of 25.64 km.
Bangalore Metro's Phase 2 expansion is for 73.92 km
A tunnel boring machine will be used to excavate a tunnel
It will take an additional Rs 922.92 crore and seven months to complete.
The estimated cost of the project is‌‌ Rs 63,246 crore
The project is estimated to cost Rs 2,310 crore
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