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The Karnataka state cabinet has approved Namma Metro's Phase 3A extension, linking Sarjapur to Hebbal at an estimated cost of INR 28,405 crore. The 36.6-km line will feature 17 elevated stations over 22.1 km and 11 underground stations over 14.5 km. It will connect Bengaluru's IT hub with northern areas, integrating with key lines: Blue at Iblur, Pink at Dairy Circle, Purple in the central business district, and Blue and Orange at Hebbal. While promising improved connectivity, Namma Metro's prior delays, such as Phase 1's five-year delay and Phase 2's incomplete sections, highlight challenges in execution. Timely planning and funding will be critical to avoiding cost escalations and meeting deadlines.
The Karnataka state cabinet recently gave its approval for the Phase 3A extension of the Namma Metro, connecting Sarjapur to Hebbal, with an estimated cost of INR 28,405 crore. The 36.6-kilometre line will feature a 22.1-kilometre elevated corridor with 17 stations and a 14.5-kilometre underground stretch comprising 11 stations. Advertisement
This new line will link the IT hub in eastern Bengaluru with northern areas. The elevated section begins at Sarjapur and will integrate with the Blue Line at Iblur. Following Koramangala, the line transitions underground. It will intersect the Pink Line at Dairy Circle and integrate with the operational Purple Line in the central business district.
The line will connect to the Blue and Orange Lines at Hebbal. The construction plan for this Metro line had been outlined in the Comprehensive Mobility Plan 2020. With the state government's approval, the next step is to seek approval from the Centre and secure funding for the project.
The Namma Metro has faced several delays in its previous phases. The Phase 1 project, which covered 42.3 km, was originally set for completion in 2012, but it was only fully commissioned in 2017. Phase 2 involved constructing a 72-kilometre line with a deadline of 2021, yet only 34.6 km has been operational. The delay has led to a significant cost escalation from INR 26,405 crore to INR 40,614 crore.
Additionally, the Yellow Line (19 km) from RV Road to Bommasandra has remained unused due to the delay in procuring Metro coaches. The construction of the 58-kilometre Phase 2A and 2B lines, linking Central Silk Board to the airport, is progressing, with the central government recently approving Phase 3, which will extend from Kempapura to JP Nagar and Hosahalli to Kadabagere. The BMRCL is currently conducting a geotechnical survey before beginning civil work for Phase 3.
In conclusion, with the state's approval, Namma Metro's Phase 3A promises to significantly enhance connectivity in Bengaluru, benefiting commuters and boosting the city's infrastructure development. However, previous delays underscore the need for timely execution and proper planning to avoid further cost escalations.
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