Services On Delhi Metro's Blue Line Connecting Dwarka-Rajiv Chowk Hit Due To Technical Glitch Services On Delhi Metro's Blue Line Connecting Dwarka-Rajiv Chowk Hit Due To Technical Glitch The DMRC tweeted in the morning that there was a "Delay in service from Dwarka to Rajiv Chowk. Normal service on all other lines". Around 11 AM, the DMRC again tweeted that "normal services have resumed" on the Blue Line. (File) New Delhi: Services on a major section of the busy Blue Line of the Delhi Metro were intermittently affected for nearly two hours on Friday due to a technical snag, officials said.