The proposed Bommasandra-Hosur Metro corridor spans a total of 20.5 km, with 11.7 km falling in Karnataka and the remaining 8.8 km in Tamil Nadu https://www.moneycontrol.com/news/business/south-indias-first-inter-state-metro-cmrl-to-conduct-feasibility-study-to-extend-bengaluru-metro-to-hosur-in-tn-11076561.html
