Connectivity in East Delhi will be strengthened by a new Shastri Park to Mayur Vihar Phase III metro corridor announced by the Chief Minister at the DMRC 32nd Foundation Day. The corridor will span 13.197 km and include eight stations as part of Phase V (B), which adds 97.158 km and 65 stations to the network at an estimated cost of Rs. 482.05 bn. The proposal will be sent to the Central government for approval.

The line will have both underground and elevated stretches, with eight point nine nine km underground and four point two zero seven km elevated, and will operate as an independent corridor. It will link neighbourhoods including Geeta Colony, Gandhi Nagar market, Kailash Nagar, Patparganj, New Kondli and Mayur Vihar Phase III. Three interchange stations are proposed at Shastri Park on the Red Line, Nirman Vihar on the Blue Line and Trilokpuri on the Pink Line.

Officials say the corridor is intended to ease travel for residents in congested East Delhi neighbourhoods that rely on road transport, reducing pressure on arterial routes. Gandhi Nagar and Geeta Colony see significant daily movement of traders and office-goers, while areas around Patparganj and Mayur Vihar have seen rapid residential growth in the last decade. The line should reduce dependence on interchange-heavy routes used by commuters via Rajiv Chowk or Yamuna Bank.

Phase V (B) also includes routes such as Dhansa Bus Stand-Nangloi, Central Secretariat-Kishangarh, Samaypur Badli-Narela, Kirti Nagar-Palam, Jor Bagh-Mithapur and Keshavpuram-Rohini Sector 34, with four corridors identified as priority and targeted for completion by 2029 though it is not yet specified if the Shastri Park-Mayur Vihar line is among them. DMRC managing director Vikas Kumar had said the complete length of Phase V will be around 200 km across the Delhi-NCR and that the remaining corridors will extend metro coverage into NCR states. Earlier, the Cabinet approved Phase V (A), a 16-km expansion focused on Central Vista.