With its first section to be inaugurated on October 20th, 2011, Purple Line became the first line of Bangalore Metro or Namma Metro to become operational. The line runs for 18.2 km in an east–west direction, and it has 17 stations. It uses 1435 mm (standard gauge) tracks, while 750 V direct current is supplied via third rail. Purple Line trains have three coaches, and they operate at a maximum speed of over 65 km/h with a frequency of 4–15 minutes, depending on the time of day. Most of the stations on the line are elevated, while three are underground and one at grade.
Stations on Purple Line
| Station | Interchange/Connections |
| Baiyappanahalli | Baiyappanahalli Railway Station |
| Swami Vivekananda Road | |
| Indiranagar | |
| Halasuru | |
| Trinity | |
| Mahatma Gandhi Road | |
| Cubbon Park | |
| Vidhana Soudha | |
| Sir M Visveshwaraya | |
| Majestic | Green Line; Bangalore City Railway Station; Kempegowda Bus Terminal |
| City Railway Station | Bangalore City Railway Station |
| Magadi Road | |
| Hosahalli | |
| Vijayanagar | |
| Attiguppe | |
| Deepanjali Nagar | |
| Mysore Road |
Further Extension of Purple Line
As part of Phase II development, Purple Line is being extended in both directions. From Mysore Road in the east, it will be extended to Kengeri, while from Baiyappanahalli in the west, it will be extended to Whitefield. The line, after both extensions, will be over 42 km long and comprise 36 stations.
Top Attractions Connected by Purple Line
| Top Attraction | Nearest Station | Distance from Nearest Station (Km) |
| GT World Mall | Magadi Road | 0.5 |
| Mantri Square Mall | Majestic | 1.8 |
| Karnataka Chitrakala Parishath | Majestic | 2.1 |
| Cubbon Park | Vidhana Soudha | 0 |
| Bangalore Palace | Vidhana Soudha | 2.8 |
| M Chinnaswamy Stadium | Cubbon Park | 0.2 |
| Visvesvaraya Industrial & Technological Museum | Cubbon Park | 1 |
| St Mark’s Cathedral | Cubbon Park | 0.7 |
| Jawaharlal Nehru Planetarium | Cubbon Park | 1 |
| Indira Gandhi Musical Fountain Park | Cubbon Park | 0.8 |
| Racecourse | Cubbon Park | 1.9 |
| St Andrew’s Presbyterian Church | Cubbon Park | 0.8 |
| Commercial Street | Cubbon Park | 1.5 |
| St Mary’s Basilica | Cubbon Park | 1.1 |
| Russell Market | Cubbon Park | 1.3 |
| UB City | Cubbon Park | 1.4 |
| MG Road | Mahatma Gandhi Road | 0 |
| Bangalore One Mall | Mahatma Gandhi Road | 0.6 |
| Brigade Road | Mahatma Gandhi Road | 0.2 |
| 1 MG-Lido Mall | Trinity | 0.5 |
| Ulsoor Lake | Trinity | 1.9 |
| St John’s Church | Trinity | 1.9 |
| St Francis Xavier’s Cathedral | Trinity | 1.9 |
Bangalore Metro Purple Line Map
