The Patna–Mughalsarai section, officially Patna–Pandit Deen Dayal Upadhyaya section, is a railway line connecting Patna Junction in the Indian state of Bihar and Pt.

Deen Dayal Upadhyaya Junction in Uttar Pradesh.

The first rail track between Howrah and Delhi was via what was later named as Sahibganj loop and the first through train on the route was run in 1864.

A "shorter main line" connecting Raniganj and Kiul was in position in 1871 and the opening of the Grand Chord in 1907 shortened the distance from Howrah to Delhi even further.

[5] List of important railway stations on Patna-Mughalsarai section is as follows: Patna and Mughalsarai, on this line, are amongst the top hundred booking stations of Indian Railway.