Delhi-NCR's metro is expected to see a big addition with three new corridors slated to open by the end of this year. The three new lines are Krishna Park Extension-Deepali Chowk, Majlis Park-RK Ashram Marg - both sections of the Magenta line extension, and a part of the Golden Line linking Aerocity and Tughlakabad. Combined, they will add about 36 kilometres to Delhi-NCR's metro network.

Three phase IV corridors-Pink line (Majlis Park-Maujpur), Magenta line (Janakpuri West-RK Ashram Marg) and Golden line (Aerocity-Tughlakabad)-had received sanction from the Union Cabinet on March 7, 2019. Two more phase IV corridors-Golden line (Lajpat Nagar-Saket G Block) and Inderlok-Indraprastha-were approved on March 13, 2024. The Indraprastha-Inderlok corridor has been merged into the Magenta line corridor.

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Although the three phase IV corridors had been sanctioned by the centre several years back, work got delayed because of pending clearances from the past Delhi government and the COVID-19 pandemic. Now the work is going on in full swing.

The Janakpuri West-RK Ashram Marg section between Janakpuri West and Krishna Park Extension, part of phase IVcorridors, opened in January 2025. And Prime Minister Narendra Modi inaugurated the Magenta line section between Deepali Chowk to Majlis Park and part of the Pink line, Majlis Park-Maujpur Babarpur on March 8, 2026.

The two other portions of the Magenta line - Krishna Park Extension to Deepali Chowk and Majlis Park to RK Ashram Marg- are expected to be completed by the end of the year. The project will boost connectivity between West Delhi and the central part of the city and between East Delhi and central Delhi.

The Aerocity-Tughlakabad corridor of the Golden Line is also nearing completion and is expected to open by the end of the year. The new metro corridor is expected to be a convenient link from the south of Delhi and Faridabad to the airport.

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Delhi Metro Phase 4 - Corridor Details

Corridor/Section

Line

Length (km)

Station

Condition description

The corridor opened on March 8.

Majlis Park - Maujpur Babarpur

Pink Line

12.318

-

Has already begun

Deepali Chowk - Majlis Park

Magenta Line

9.920

-

Has already begun

Corridors under construction under Metro Phase IV

Krishna Park Extension to Deepali Chowk and Majlis Park to RK Ashram Marg

Magenta Line

17.528

14

Expected to start by December

Indraloka - Indraprastha

General

12.377

10

Under construction

Delhi Aerocity - Tughlakabad

Golden Line

23.622

15

Expected to start by December

Lajpat Nagar - Saket G Block

Golden Line

8.385

8

Under construction

Rithala - Kundli

Red Line

26.463

21

Under construction

Total

88.375

69

-