The Kolkata Metro in Kolkata has 6 lines and 60 stations across 60 km of track, run by Metro Railway Kolkata (Indian Railways). This guide lists every line with its end stations and colour, the main interchange stations, and tips for reading the official map.
Official map: the latest network map is published by Metro Railway Kolkata (Indian Railways). It shows every station and is updated when lines or stations open.
Network at a glance
- Lines
- 6
- Stations
- 60
- Network length
- 60 km
- Opened
- 1984
- Operator
- Metro Railway Kolkata (Indian Railways)
- Main interchanges
- Esplanade, Sealdah, Howrah Maidan, Kavi Subhas
All Kolkata Metro lines
Line 1: Blue (Dakshineswar–Kavi Subhas)
32 stations · 31.4 km · Dakshineswar ↔ Kavi Subhas (New Garia)
Line 2: Orange (Howrah Maidan–Sector V)
13 stations · 16.6 km · Howrah Maidan ↔ Sector V (Salt Lake)
Line 3: Green (Joka–Esplanade)
11 stations · 14.7 km · Joka ↔ Esplanade
Line 4: Violet (Noapara–Airport)
12 stations · 11.0 km · Noapara ↔ Airport
Line 5: Purple (Hemanta Mukhopadhyay–Barasat)
4 stations · 5.0 km · Hemanta Mukhopadhyay ↔ Barasat
Line 6: Yellow (Kavi Subhas–Ruby)
3 stations · 5.4 km · Kavi Subhas ↔ Ruby
Key interchange stations
These stations connect two or more lines, so they are the easiest places to change trains.
| Station | Lines and connections |
|---|---|
| Esplanade | Blue, Green |
| Sealdah | Orange |
| Howrah Maidan | Orange |
| Kavi Subhas | Blue, Yellow |
| Noapara | Blue, Violet |
How to read the Kolkata Metro map
- Follow the colour. Each line has its own colour, and the same colour is used on platform signs and inside trains.
- Use the end station to pick a direction. Platform signs show the terminus a train is heading to, so check which end of the line your stop is towards before you board.
- Look for interchange symbols. Where lines cross, the map marks the station as an interchange. Allow a few extra minutes for long walking corridors at big hubs.
- Check for closures. Weekend engineering work can close sections of a line. The operator's website and app list planned closures.
Plan your trip: Kolkata Metro fares · all stations · visitor guide · airport connection