[3] Jhajha Station is connected to metropolitan area of India by Howrah–Delhi main line via Patna–Mughalsarai section.

[4] 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.

The Kiul–Patna sector was ready around 1862.The 'Shorter Main Line' on the Delhi–Calcutta route (via Jhajha, Patna) is in place with the completion of the section from Raniganj to Kiul.

There are proposals from the Railway Ministry to connect Jhajha station with New Giridih via Sono, Batia, Chakai and Bengabad.

The first phase of the project involves 20-km-long Jhajha–Batia section, the foundation for which was laid in 2019 and which will be constructed at a cost of Rs 496 crore.