The Inner Ring Line is a proposed metro rail line for the Namma Metro's network in the city of Bangalore, Karnataka, India.
A study by Indian Institute of Science (IISc) has projected that the loop line would increase the overall ridership of Namma Metro by 77 percent.
[1] IISC has recommended the loop line as a better alternative for Government of Karnataka's proposal of city wide tunnel roads.
[2] 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 expansions.