METRO CORRIDOR DOSSIER // KOLKATA-METRO-PURPLE-LINE-UNDER-CONSTRUCTION
Kolkata Metro Line 3 (Purple Line — Under Construction Section: Majerhat ↔ Esplanade)
● Under Construction📏 6.50 km Under Construction Route🚉 5 Planned Stations (1 Elevated, 4 Underground) Stations🗓 Target Opening: Nov 2026🏢 Metro Railway, Kolkata (Owner: Indian Railways / RVNL)
Kolkata Metro Line 3 (Purple Line - Under Construction Segment) spans 6.50 km across 5 stations (1 elevated at Mominpur, 4 underground at Khidirpur, Victoria, Park Street, and Esplanade). The corridor extends the operational Purple Line from Majerhat northwards into central Kolkata, creating a vital multi-line interchange hub at Esplanade with the Line 1 Blue Line and Line 2 Green Line.
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Kolkata Metro Line 3 (Purple Line - Under Construction) Economics
Kolkata Metro Line 3 (Purple Line - Under Construction) Economics
Total InvestmentUnder Construction Section Sanctioned Share ~₹2,200+ Cr (Part of ₹2,619 Cr Sanction)
Primary BackersMinistry of Railways (Government of India)
Metro Railway, Kolkata (Owner: Indian Railways / RVNL)
Opened / Est. Opening
Target Opening: Nov 2026 (Mominpur) | May 2028 (Khidirpur – Esplanade)
Maximum Design Speed
80 km/h
Track Gauge
Broad Gauge (1,676 mm / 5 ft 6 in)
Electrification System
750V DC Third Rail
Primary Depot
Joka Metro Depot
Chronological Milestones
Kolkata Metro Line 3 (Purple Line - Under Construction) Timeline
December 2019
RVNL floated tenders for Majerhat to Esplanade underground construction package.
September 2022
Larsen & Toubro (L&T) mobilized heavy machinery for Mominpur elevated viaduct and Khidirpur shaft.
10 July 2025
TBM Durga (S-1410) commenced tunnel excavation from Khidirpur premises toward Victoria and Park Street.
Target Nov 2026
Targeted opening of Mominpur elevated station section from Majerhat.
Target May 2028
Targeted completion of underground tunneling and commissioning of Khidirpur, Victoria, Park Street, and Esplanade stations.
Proprietary analytics
Purple Line Central Extension & Urban Transit Impact
Economic Significance
Extends Purple Line mass transit directly into central Kolkata's financial, commercial, and administrative core.
Traffic Impact
Expected to eliminate massive traffic congestion along Diamond Harbour Road, Kidderpore Road, and Jawaharlal Nehru Road.
Employment Centres Served
Connects South Kolkata suburban residential areas directly to Park Street and Esplanade central business districts.
Intermodal Connectivity
Establishes a mega 3-line interchange hub at Esplanade, integrating Blue Line, Green Line, and Purple Line.
Impact on Real Estate
Catalyzing redevelopment and heritage precinct commercial expansion around Victoria, Park Street, and Esplanade.
Geospatial Explorer
Kolkata Metro Line 3 (Purple Line - Under Construction) Alignment Map & GIS Explorer
Underground & Elevated Breakdown6.50 km (1.02 km Elevated Viaduct / 5.48 km Underground Tunnels)
Viaduct Length1.02 km Elevated Viaduct (Mominpur)
Tunnel Length5.48 km Underground Tunnels (Khidirpur, Victoria, Park Street, Esplanade)
River CrossingsChetla Canal Viaduct & Underground Drive beneath Kolkata Maidan
Major Bridges / CrossingsMajerhat Elevated Overpass Connection
Primary DepotJoka Metro Depot
Answers
Frequently Asked Questions
The Kolkata Metro Purple Line branch refers to the under-construction Majerhat–Esplanade section of Kolkata Metro Line 3 (Purple Line). It extends the operational Purple Line northwards into central Kolkata.
The Purple Line branch route runs from Majerhat to Esplanade through Mominpur, Khidirpur, Victoria and Park Street. The section is approximately 6.50 km long.
The Purple Line branch has five planned stations: Mominpur, Khidirpur, Victoria, Park Street and Esplanade. Mominpur is elevated, while the other four stations are underground.
The Purple Line branch map covers the 6.50 km under-construction section from Majerhat to Esplanade, passing through Mominpur, Khidirpur, Victoria and Park Street before reaching Esplanade.
The Purple Line branch project is the Majerhat–Esplanade under-construction section of Kolkata Metro Line 3. It comprises five planned stations and extends the operational Purple Line toward central Kolkata.
Yes. The Majerhat–Esplanade section of Kolkata Metro Line 3 is currently under construction. It covers approximately 6.50 km and includes five planned stations.
The Purple Line branch extension continues the operational Purple Line from Majerhat to Esplanade. The extension is planned to provide connectivity into central Kolkata and create an interchange hub at Esplanade.
The Majerhat–Esplanade Purple Line branch is under construction. The project includes one elevated station at Mominpur and four underground stations at Khidirpur, Victoria, Park Street and Esplanade.
The supplied project information identifies this section as the Majerhat–Esplanade under-construction section of Kolkata Metro Line 3 (Purple Line). It does not officially identify the section as 'Phase 2'.
The latest status described for the project is that the Majerhat–Esplanade section is under construction. The 6.50 km section will have five planned stations and extend the operational Purple Line into central Kolkata.
The project information lists a target opening of November 2026 for the Majerhat–Esplanade under-construction section.
The Purple Line branch will reach Esplanade, where it is planned to form a multi-line interchange with Kolkata Metro Line 1 (Blue Line) and Line 2 (Green Line).
