Baku-Tbilisi-Kars railway line to be extended by 7 km May 11, 2011 | Asia Pacific News Azerbaijan is planning to extend the new Baku-Tbilisi-Kars railway line by 7 km, linking it with the town of Sadarak in Nakhchivan at a cost of USD750 million. The extension will open up rail communic... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password