Kolkata metro’s Joka-BBD Bagh line to be completed by 2013 August 29, 2011 | Asia Pacific News The Kolkata metro in West Bengal, India is expected to complete construction work on the 16.72-km metro line from Joka (south Kolkata) to BBD Bagh (central Kolkata) by 2013. The line is a 9.75 km elev... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password