Green Line
Howrah Maidan ↔ Salt Lake Sector V — 12 stations, 16.6 km. India’s first under-river metro.
12
Stations
16.6 km
Length
13 February 2020
Opened
6 min
Peak frequency
Howrah Maidan ↔ Salt Lake Sector V
The Green Line (Line 2), also called the East–West Metro, runs 16.6 km from Howrah Maidan to Salt Lake Sector V. It is famous for being India’s first under-river metro: the tunnels dip beneath the Hooghly river to connect Howrah with central Kolkata.
The corridor opened in stages between 2020 and 2025. The landmark Howrah Maidan–Esplanade section beneath the river opened on 6 March 2024, and the final continuous link was completed on 22 August 2025.
Howrah is the deepest metro station in India, around 33 metres below ground. The line connects the two busiest railway terminals in eastern India — Howrah and Sealdah — and the Salt Lake IT hub, interchanging with the Blue Line at Esplanade.
All 12 stations
Green Line · Howrah Maidan ↔ Salt Lake Sector V
Travel times
| From | To | Time | |
|---|---|---|---|
| Howrah Maidan | → | Howrah | 2 min |
| Howrah | → | Mahakaran | 2 min |
| Mahakaran | → | Esplanade | 2 min |
| Esplanade | → | Sealdah | 2 min |
| Sealdah | → | Phoolbagan | 2 min |
| Phoolbagan | → | Salt Lake Stadium | 2 min |
| Salt Lake Stadium | → | Bengal Chemical | 2 min |
| Bengal Chemical | → | City Center | 2 min |
| City Center | → | Central Park | 2 min |
| Central Park | → | Karunamoyee | 2 min |
| Karunamoyee | → | Salt Lake Sector V | 2 min |
Approximate running times between adjacent stations during normal operation.
Did you know?
- The Green Line is India's first transportation tunnel under a river, passing beneath the Hooghly.
- Howrah station is the deepest metro station in the country (~33 m).
- It directly links Howrah and Sealdah, the two largest railway terminals in eastern India.
- Salt Lake Sector V is the eastern terminus serving Kolkata's main IT and electronics hub.
Connections and interchanges
Green Line interchanges and connections:
- Esplanade ↔ Blue Line — the central north–south spine of the network.
- Howrah and Sealdah — direct access to Indian Railways suburban and long-distance services from the two main terminals.
- Salt Lake Stadium / Sector V — buses and app cabs for the Salt Lake and New Town IT corridor.
Schedule and frequencies
See operating hours by line and day of the week, typical intervals and first and last trains across the network.
Bookmark this site before your next trip
We update kolkatametro.org the moment anything changes — schedule adjustments, service interruptions, fare updates and important Metro Railway, Kolkata notices. Save this page in your favourites and check it before travelling so you always have the latest information.