The Orange Line is an upcoming metro line serving Bangalore as part of the Namma Metro network in the city, connecting Kempapura with JP Nagar 4th Phase. This metro line will serve the industrial areas, manufacturing units, educational institutions, providing connectivity to the southern part of the city, thereby improving last-mile connectivity to commercial centres, industrial hubs, educational institutions, and healthcare facilities. The line was approved by the Union Cabinet on August 17, 2024 and is scheduled for completion in 2029.
The line passes through the western part of Outer Ring Road and passes through many major industrial areas, educational institutions and neighbourhoods of the city, such as Hebbal, BEL Circle, Goraguntepalya, Sumanahalli, Nagarabhavi, Mysuru Road, Hosakerehalli and Jaya Prakash Nagar.
The Orange Line will have interchanges with the Blue Line at Kempapura and Hebbal, Red Line at Hebbal, Green Line at Peenya and Jaya Prakash Nagar, Grey Line at Sumanahalli Cross, Purple Line at Mysuru Road and Pink Line at JP Nagar 4th Phase.
BMRCL began planning Namma Metro Phase-III in 2013, shortly after announcing Phase-II, which included the Yellow Line and Pink Line. Later in June 2013 BMRCL partnered with RITES Limited to conduct a pre-feasibility study for each proposed corridor
By 2016, BMRCL submitted its Phase-III proposal to the Ministry of Urban Development, which initially spanned 150.94 km. However, following the feasibility the network size was reduced to 102 km, with the remaining corridors being planned for Light Rail. The proposed lines were
However, in 2017 the Karnataka Government announced that the Silkboard - Hebbal line and the Nagavara - Airport line were merged to create the Blue Line and fast tracked to Phase 2A and Phase 2B.
In 2018 the Karnataka Government officially confirmed Phase III with several modifications. Multiple new lines were introduced while some others were dropped. Following another round of modifications in 2020, only two lines were finalized to be part of Phase-III
In July 2020, RITES Limited was assigned to prepare the Detailed Project Report (DPR) work for Phase-III. RITES submitted the DPR to the State Government who approved it in November 2022. The final approval was received from the Central Government in August 2024 paving the way for BMRCL to start land acquisition and tender notification.
As of January 2025 BMRCL has issued tenders for Geotechnical Investigations and Detailed Design Consultancy (DDC). Once the Geotechnical Investigations are finished and finalized with the DDC BMRCL plans to release the Civil Work Tender.
As per the initial Detailed Project Report (DPR) line is estimated to cost Rs.15,611 crores. The cost includes the construction of both new metro lines along with flyovers, which will be built along the metro pillars. The funding is at the moment planned at
Passenger interchange facilities, connecting to other metro and railway lines, are proposed at the following station
These are the notable areas that will be integrated as part of the Phase 3 of Namma Metro and they are as given below:-