| Sibi-Zardalu Branch-Line | |
| Native Name: | سبی-خوست برانچ لائن |
| Foundation: | 1881 |
| Length: | 140 km |
| Stations: | 10 |
| Area Served: | Balochistan |
| Services: | Rail transport |
| Predecessor: | Kandahar State Railway (1881-85) |
| Parent: | North Western State Railway (1886-1905) North Western Railway (1905-1947) Pakistan Western Railway (1947-1971) Pakistan Railways (1971-Present) |
| Speed: | 20km/h |
The Sibi-Zardalu Branch Line, previously known as Kandahar State Railway opened in 1881, originally ran from Sibi and then on wards to Rindli, with the intention to reaching Quetta and onwards to Kandahar.[1] However, the line never reached Kandahar.[2] The Kandahar State Railway had its headquarters at Sibi, Balochistan. The Kandahar State Railway joined with the southern section of the Sind–Pishin State Railway and in 1886 amalgamated, with other railways, to form North Western State Railway (NWSR). The total length of this line is 140 kilometers with 10 railway stations.
From Sibi, the line ran south-west, skirting the hills to Rindli, and originally followed the course of the Bolan stream to its head on the plateau. The destructive action of floods, however, led to the abandonment of this alignment. The railway now follows the Mashkaf Valley. The Bolan Pass Railway construction enabled this NWR route to be selected. The railway line was abandoned by Pakistan Railways in 2006 due to floods. Rehabilitation work started on the railway line in 2015. Following several delays the line became operational in 2023.[3]
When the railway line was closed in 2006 due to terrorists attacks, locals have been facing travelling problems. As there is no direct road which connects Sibi to harnai and further, so locals have to go Quetta first and then they go to there original destination. But now it has become easy for them because railway line has become active.