The Inner Ring Line is a proposed metro rail line for the Namma Metro's network in the city of Bengaluru, Karnataka, India by Indian Institute of Science (IISc), featuring 24 stations and Six to Eight interchanges with other lines. A study by the institute has projected that the loop line would increase the overall ridership of Namma Metro by 77 percent. The report also concluded that the emissions of carbon dioxide and particulate matter would reduce by 14.8 percent and 18.6 percent respectively, by 2031.
IISc has recommended the loop line as a better alternative for Government of Karnataka's proposal of city wide tunnel roads. The institute stated that the tunnel roads would lead to an increase in the number of vehicles on the road, as opposed to the line, which would lead to a decrease almost twice the calculated increase with the tunnel roads.
As of February 2026, further deliberation on the proposal has been put on hold, as the state government has instead prioritised feasibility studies for Metro extensions to Bengaluru's satellite towns such as Tumakuru, Devanahalli, Attibele, Hoskote, and Jigani.
Funding The proposal to build Metro along the city's Inner Ring Road was mentioned in the government's Comprehensive Mobility Plan (CMP) 2031. It is unclear if the 34-km underground line, which is expected to cost about ₹ 10,000 crore, will be a part of Namma Metro’s upcoming Phase III or phase IV expansions. The Bangalore Metro Rail Corporation Ltd (BMRCL) is yet to finalise the new lines including the Inner Ring Line.
Stations Inner Ring Line#Station nameConnectionsStation layout(TBC) EnglishKannada1Yeshwanthpura TTMCಯಶವಂತಪುರ ಟಿಟಿಎಂಸಿYeshwanthpuraUnderground2Indian Institute Of Scienceಭಾರತೀಯ ವಿಜ್ಞಾನ ಸಂಸ್ಥೆUnderground3Mekhri Circleಮೇಖ್ರಿ ವೃತ್ತUnderground4Jaya Chamarajendra Nagaraಜಯ ಚಾಮರಾಜೇಂದ್ರ ನಗರUnderground5Jayamahalಜಯಮಹಾಲ್Underground6Cantonment Railway Stationದಂಡು ರೈಲ್ವೇ ನಿಲ್ದಾಣUnderground7Halasuru lakeಹಲಸೂರು ಕೆರೆUnderground8Trinity ಟ್ರಿನಿಟಿUnderground9Airforce Command Hospitalಕಮಾಂಡ್ ಆಸ್ಪತ್ರೆUnderground10Domaluruದೊಮ್ಮಲೂರುUnderground11Embassy Golf Linkಎಮ್ಬಿಸಿ ಗರ್ಲ್ಸ್ ಲಿಂಕ್Underground12Srinivagiluಶ್ರೀನಿವಾಗಿಲುUnderground13St John's Hospitalಸೇಂಟ್ ಜಾನ್ಸ್ ಆಸ್ಪತ್ರೆUnderground14Sudduguntepalyaಸುದ್ದುಗುಂಟೆಪಾಳ್ಯUnderground15ಡೈರಿ ಸರ್ಕಲ್Underground16Wilson Gardenವಿಲ್ಸನ್ ಗಾರ್ಡನ್Underground17Lalbagh ಲಾಲ್ಬಾಗ್Underground18BasavanagudiಬಸವನಗುಡಿUnderground19GavipuraಗವಿಪುರUnderground20Azad Nagara (sirsi circle)ಅಜಾದ್ ನಗರ (ಸಿರ್ಸಿ ವೃತ)Underground21Hosahalli (Toll Gate)ಹೊಸಹಳ್ಳಿ (ಟೋಲ್ ಗೇಟ್)Underground22Dhobi ghatದೋಭಿ ಘಾಟ್Underground23Mahalakshmiಮಹಾಲಕ್ಷ್ಮಿUnderground
See also Namma Metro Purple Line Green Line Yellow Line Pink Line Blue Line Orange Line Red Line Grey Line List of Namma Metro Stations Rapid transit in India List of metro systems
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