Kolkata Metro

The **Kolkata Metro** () is a rapid transit system in West Bengal, India. It gives service to the city of Kolkata and the larger Kolkata Metropolitan Area. Opened in 1984, it is the first rapid transit system in India. It is also the second busiest and fourth-longest metro system in India. , it has four active lines: Line 1 (Blue Line), Line 2 (Green Line), Line 3 (Purple Line) and Line 6 (Orange Line).

Line 1 is  long. It runs from Dakshineswar to Kavi Subhash. Line 2 is  long. It is divided into two parts: Salt Lake Sector V to Sealdah, and Esplanade to Howrah Maidan. Line 3 is  long. It runs from Joka to Majerhat. Line 6 is . It runs from Kavi Subhash to Hemanta Mukhopadhyay. The total length of the Kolkata Metro is . Other than these four active lines, there are two more metro lines to be opened.

The Kolkata Metro is the fourth-longest active metro network in India after the Delhi Metro, Namma Metro and the Hyderabad Metro. It is a mix of underground, at-grade and elevated (higher than the ground) stations. It used both broad-gauge and standard-gauge tracks. Trains run between 06:55 and 22:30 IST. The fares (money to use the trains) of the rapid transit system are between ₹5 to ₹50.

Metro Railway, Kolkata and Kolkata Metro Rail Corporation (KMRC) own and run the metro system. Metro Railway, Kolkata became the 17th zone of the Indian Railways on 29 December 2010. The Indian Railways is completely owned and funded by the Ministry of Railways. It is the only metro system in the country to be run by the Indian Railways. There are about 300 train trips every day, carrying more than seven hundred thousand passengers.

### Active

|Line number|Line colour|First run|Last extension (making longer)|Metro stations|Length (kilometres)|Orientation|colspan="2"|Terminals (end stations)|Rail vehicles|Track gauge|Power|Average frequency (minutes)||||||||||||
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
|style="background:#; text-align: center;"|<span style="color:white">**1**</span>|style="background:#; text-align: center;"|**<span style="color:white">Blue Line</span>**|style="text-align: center;"|24 October 1984|style="text-align: center;"|22 February 2021|style="text-align: center;"|26|style="text-align: center;"|32.33|style="text-align: center;"|North – South|style="text-align: center;"|Dakshineswar|style="text-align: center;"|Kavi Subhash|ICF, CRRC Dalian|5 ft 6 in gauge railway|rowspan="5"|750 volts DC (direct current)|5||
|style="background:#; text-align: center;" rowspan=2|<span style="color:white">**2**</span>|style="background:#; text-align: center;" rowspan=2|**<span style="color:white">Green Line</span>**|style="text-align: center;"|13 February 2020|style="text-align: center;"|14 July  2022|style="text-align: center;"|8|style="text-align: center;"|9.1|style="text-align: center;"|East – West|style="text-align: center;"|Sealdah|style="text-align: center;"|Salt Lake Sector-V|rowspan=2|BEML|rowspan=2||rowspan=2|10|
|style="text-align: center;"|6 March 2024|style="text-align: center;"|–|style="text-align: center;"|4|style="text-align: center;"|4.8|style="text-align: center;"|East – West|style="text-align: center;"|Howrah Maidan|style="text-align: center;"|Esplanade|||||||||||
|style="background:#; text-align: center;"|<span style="color:white">**3**</span>|style="background:#; text-align: center;"|**<span style="color:white">Purple Line</span>**|style="text-align: center;"|30 December 2022|style="text-align: center;"|6 March 2024|style="text-align: center;"|7|style="text-align: center;"|7.75|style="text-align: center;"|Centre – South|style="text-align: center;"|Majerhat|style="text-align: center;"|Joka|rowspan="2"|ICF|rowspan="2"|5 ft 6 in gauge railway|25||
|style="background:#; text-align: center;"|<span style="color:white">**6**</span>|style="background:#; text-align: center;"|**<span style="color:white">Orange Line</span>**|style="text-align: center;"|6 March 2024|style="text-align: center;"|–|style="text-align: center;"|5|style="text-align: center;"|5.4|style="text-align: center;"|South – North|style="text-align: center;"|Kavi Subhash|style="text-align: center;"|Hemanta Mukhopadhyay|20||||||
|style="text-align:center;"|**Total**||||**50**|**59.38**||||||||||||||||||

## Metro lines

|Metro line|Status|Length|Metro stations|Year it started|
| --- | --- | --- | --- | --- |
||Fully active|32.33  kilometres|26|1984|
||Most parts are active|13.9  kilometres|12|2020|
||Some parts are active|7.75  kilometres|7|2022|
||Some parts are active|5.4  kilometres|5|2024|

### Line 1 (Blue Line)

Kolkata Metro Line 1, also called North–South Metro or the Blue Line, is the oldest metro line of Kolkata. Its total length is . It has 26 stations. Fifteen of them are underground, 9 of them are elevated and 2 of them are at-grade. It uses  broad gauge.

North–South Metro is the first underground railway of India. The first trains start running in October 1984. The original plan was to build a metro line between Dum Dum and Tollygunge. The line was completed in February 1999. But the line became longer in the next years. At first, it became longer from Tollygunge (Mahanayak Uttam Kumar) to Kavi Nazrul in 2009. Then it became longer from Kavi Nazrul to Kavi Subhash in 2010. After that, the line became  longer from Dum Dum to Noapara in 2013. The Dum Dum–Noapara part of the line is elevated (higher than the ground). Finally, the line became  longer from Noapara to Dakshineswar in 2021.

## Infobox (public transit)

- **name**: Kolkata Metro
- **native name**: কলকাতা মেট্রো
- **imagesize**: 180px
- **image**: Kolkata Metro System Logo-en.svg
- **image2**: Kolkata Metro CRRC Dalian rake 1.png
- **caption3**: A train of the Kolkata Metro at Kolkata Metro Line 1, Line 1.
- **locale**: Kolkata, West Bengal, India
- **transit type**: Rapid transit
- **stations**: List of Kolkata metro stations, 48 (active)
List of proposed Kolkata metro stations, 32 (under construction)
 List of proposed Kolkata metro stations, 18 (planned)
- **ridership**: more than 700,000
- **operator**: Metro Railway, Kolkata
- **vehicles**: about 45
- **train length**: 6 and 8 railway coaches (originally 4)
- **headway**: 4 minutes (Line 1)
10 minutes (Line 2)
20 minutes (Line 3)
25 minutes (Line 6)
- **map state**: collapsed
- **area served**: Kolkata Metropolitan Area
- **line number**: **Active:**
**Under construction:**
**Planned:**
- **host**: Indian Railways
- **imagesize2**: 250px