The Chennai Metro Rail in Chennai has 2 lines and 54 stations across 54 km of track, run by Chennai Metro Rail Limited (CMRL). 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 Chennai Metro Rail Limited (CMRL). It shows every station and is updated when lines or stations open.
Network at a glance
- Lines
- 2
- Stations
- 54
- Network length
- 54 km
- Opened
- 2015
- Operator
- Chennai Metro Rail Limited (CMRL)
- Main interchanges
- Chennai Central, Alandur
All Chennai Metro Rail lines
Blue Line / Corridor 2 (Airport–Wimco Nagar)
32 stations · 31.0 km · Chennai Airport ↔ Wimco Nagar
Green Line / Corridor 1 (Chennai Central–St. Thomas Mount)
23 stations · 23.0 km · Chennai Central ↔ St. Thomas Mount
Key interchange stations
These stations connect two or more lines, so they are the easiest places to change trains.
| Station | Lines and connections |
|---|---|
| Chennai Central | Blue, Green |
| Alandur | Blue, Green |
How to read the Chennai Metro Rail 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: Chennai Metro Rail fares · all stations · visitor guide · airport connection