The major works in this section were a bridge across the Son River at Dehri, and tunnelling and ghat line construction between Gurpa and Gujhandi.

[2] The total length of the Upper Sone Bridge across the Soane, as the river was then called, over abutments is 3,064 metres (10,052 ft).

[4] The opening of the 4.62 km Vembanad Rail Bridge, connecting the Container Transshipment Terminal on Vallarpadam Island to Edappally, in February 2011, pushed it to the second position.

[7] The Arrah–Sasaram line was opened as a narrow gauge (2 ft 6 in (762 mm)) section of Martin's Light Railways in 1914 and was closed in 1978.

The Howrah Rajdhani (between Howrah and New Delhi) travels at an average speed of 85.8 km per hour and the Sealdah Rajdhani (between Sealdah and New Delhi) travels at an average speed of 84.70 km per hour.