The 19.75-km KR Puram–Silk Board corridor, serving a key IT hub, is targeted to open by mid-2027. 5 min readBengaluruUpdated: Oct 23, 2026 12:42 PM IST Trial runs on Namma Metro’s 19.75-km K. Bengaluru Blue Line trials by Oct-end; Pink Line passenger approval imminent within 4–5 days, as officials push to accelerate metro work amid delays. Namma Metro Blue Line trial run between KR Puram and Marathahalli will start by month end.