[1][2] In 1863, it built the 4 ft (1,219 mm) wide narrow gauge railway line between Azimganj and Nalhati.
[2] The Azimgan–Nalhati line was taken over by the Government in 1872, as Nalhati State Railway.
[1][3] In 1867, it opened the 1,000 mm (3 ft 3+3⁄8 in) wide metre gauge Kanpur–Lucknow branch line.
[1][3] It established a railway workshop at Alambagh in 1865 and another at Charbagh in 1867.
[5] The railway lines were converted to 1,676 mm (5 ft 6 in) broad gauge in 2017.