Kolkata (Calcutta)
underground 1984-10-24 -- 
| data | |
|---|---|
| traffic form: |
underground |
| town: | Kolkata (Calcutta), India |
| company: | |
| opened: | 1984-10-24 |
| closed: | |
| gauge: | 1676 mm |
| speed: | 80 km/h |
| voltage: | 750 V DC km/h |
| traction: | third rail |
| length: | 46 km |
| stops: | 40 |
| routes: | 3 |

underground