The Delhi Metro Thursday completed tunnelling work at Lal Quila Metro station, as part of its third phase expansion.
The 650-metre-long tunnel runs between Jama Masjid and Lal Quila Metro stations, part of the extended Central Secretariat to Kashmere Gate corridor of the third phase.
A similar tunnel on the same stretch is being constructed and is scheduled for completion by October 2014.
Delhi Metro is scheduled to build 53-km of underground lines as part of its phase three construction work which involves seven projects. Phase three is scheduled to be completed by the end of 2016.