The Sahibganj loop is a railway line connecting Khana Junction and Kiul Junction. Originally a part of the Howrah–Delhi main line, it was opened to traffic in 1866. With the construction of a shorter railway line for a part of the route, the 403.8 kilometres (250.9 mi) stretch was assigned a separate identity.
Sahibganj railway station, after which the loop line is named as Sahibganj loop
Howrah–New Delhi main line
The Howrah–New Delhi main line is a railway line connecting Delhi and Kolkata cutting across northern India. The 1,531 km (951 mi) railway line was opened to traffic in 1866 with the introduction of the "1 Down/2 Up Mail" train.
First train of the East Indian Railway, 1854