Delhi Metro Phase 4 Funding Talks Drive Critical Route, Timeline Decisions

The Delhi Metro Rail Corporation will present revised cost estimates for Phase 4 corridors to the AAP-led government on 15 July, forcing a decision on how much of the Rs 32,000 crore bill the state will cover versus central contributions.

These choices matter now because Phase 4 lines are meant to ease pressure on existing routes that recorded 2.8 million daily riders last month, while the capital prepares for winter when traffic volumes spike and air quality drops sharply along major arteries.

Engineers have flagged two priority stretches: the 21 km extension from Janakpuri West to RK Ashram Marg passing through Connaught Place, and the 14 km corridor linking Mayur Vihar Phase III to Noida Sector 62 via the Yamuna Bank depot. Both routes cross neighbourhoods already served by Phase 3 stations, where peak-hour crowding at Lajpat Nagar and Dwarka Sector 21 regularly exceeds 120 percent capacity.

DMRC data released in May shows that each new kilometre of underground track costs Rs 280 crore, while elevated sections average Rs 165 crore; the full Phase 4 package is scheduled for completion by December 2028 if funds are cleared by October.

Political and Budget Pressures

Central ministries have signalled they will release their share only after the state commits to matching funds from its 2026-27 budget, a condition tied to ongoing disputes over the Yamuna cleaning programme that runs parallel to the metro alignment near Wazirabad.

Transport department officials say any delay beyond September would push land acquisition hearings in South Delhi into the festive season, raising costs by an estimated 12 percent and affecting 4,200 households along the proposed Janakpuri alignment.

What Happens Next for Commuters

Residents can track updates through the official DMRC app, which will post route maps once the cabinet signs off; those living near the Yamuna Bank depot should prepare for temporary road closures starting in the third week of August if tenders are floated on schedule.

Final cabinet clearance is expected by 28 July, after which the corporation will float bids for the first 8 km of tunnelling work between Connaught Place and Karol Bagh.