 The Violet Line is the most recent line of the Metro to be opened, and the second standard-gauge corridor after the Green Line. The 37 km (23 mi) long line connects Escorts Mujesar in Faridabad to ITO, with 22.8 km (14.2 mi) being overhead and the rest underground. The first section between Central Secretariat and Sarita Vihar was inaugurated on 3 October 2010, just hours before the inaugural ceremony of the 2010 Commonwealth Games, and connects the Jawaharlal Nehru Stadium, which was the venue for the opening and closing ceremonies of the event. Completed in just 41 months, it includes a 100 m (330 ft) long bridge over the Indian Railways mainlines and a 167.5 m (550 ft) long cable-stayed bridge across an operational road flyover, and connects several hospitals, tourist attractions, and a major industrial estate along its route. Services are provided at intervals of 5 min. An interchange with the Yellow Line is available at Central Secretariat through an integrated concourse. On 14 January 2011, the remaining portion from Sarita Vihar to Badarpur was opened for commercial service, adding three new stations to the network and marking the completion of the line. The section between Mandi House and Central Secretariat, was opened on 26 June 2014. After that a 971-metre section between ITO and Mandi House was opened on 8 June 2015. The latest addition to the line, an 14 km (8.7 mi) extension southwards till Escorts Mujesar in Faridabad was inaugurated by Prime Minister Narendra Modi on 6 September 2015. All the nine Metro stations of the Badarpur – Escorts Mujesar (Faridabad) section of Delhi Metro's Phase 3, have been awarded the highest possible rating (platinum) for adherence to green building norms, by the Indian Green Building Council (IGBC), which has devised a rating mechanism for Metro stations and buildings on a scale of platinum, gold, silver etc. for following the green building specifications. The awards for these stations were given to DMRC's managing director, Dr. Mangu Singh by Dr. P C Jain, Chairperson, IGBC in the presence of DMRC's directors and senior officials on 10 September 2015. Currently the Faridabad corridor of Delhi Metro Violet Line is the longest metro corridor outside of Delhi, consisting of 9 stations and the total length of corridor being 14 km.
