[1] Owing to the high demands of the passengers plying between Delhi and Kolkata and to ease down the existing pressure of bookings on the Howrah Rajdhani Express, Indian Railways decided to introduce another Rajdhani class train between these two cities.

The other section is Gurpa to Gujhandi near Koderma, comprising a 22 km (14 mi) long ghat portion where trains are permitted to travel at a maximum speed of 80 km/h (50 mph).

Additionally, trains briefly touch speeds of 100 km/h (62 mph) over a short distance of approximately 3 km (1.9 mi).

In 2019, the Cabinet Committee on Economic Affairs (CCEA) recommended to the government the augmentation of the existing maximum permissible speed of the Delhi – Howrah route from 130 km/h (81 mph) to 160 km/h (99 mph), with the aim of enhancing average speed by a minimum of 60% to facilitate quicker connectivity and trade.

The project's objective is to elevate the maximum permissible speed of both the Delhi – Howrah and Kanpur – Lucknow routes to 160 km/h (99 mph) by the timeline of 2022–2023.