The 15-station section includes interchanges with the Red Line at Welcome and the Blue Line at Karkardooma and Anand Vihar.\r\n\r\nSharp curvature was required to thread the line through the densely-populated area it serves, and the minimum curve radius on the new section is just 200m. Previously the sharpest curve was on the Okhla - Jamia section of the Magenta line, where the minimum radius is 242m.\r\n\r\nThe line also had to cross one of the busiest sections of the Indian Railways (IR) network at Anand Vihar. Two viaduct piers were erected on the main line platforms without disrupting traffic and cellular lightweight concrete (CLC) construction was employed to enable a maximum bridge span of 69.8m across the railway.\r\n\r\n\r\n\r\nThe line includes an 18.2-hectare depot at Vinod Nagar, which has 20 covered and 12 open stabling sidings. Solar panels on the depot roof will generate 1.1MW of electricity for use on the site.\r\n\r\nThe opening of this stretch takes the total length of the network to 314km with 229 stations. Delhi Metro Rail Corporation (DMRC) says it has opened 80km of new lines so far this year and it expects to open the remaining 33.5km of the 123.8km Phase 3 expansion by the end of next month.\r\n\r\nFor now, the latest section of the Pink Line is isolated from the 28.7km Majlis Park - Lajpat Nagar stretch of the Pink Line, which opened in two sections in March and August. The Lajpat Nagar - Trilokpuri Sanjay Lake section is due to be completed next year.