The last 13 years of its existence has been full of challenges and every obstacle was dealt in a dedicated manner despite constraints of work force and infrastructure.

The development of infrastructure has been the major thrust area to bring about a rapid growth rate in the region and prosperity to the people.

Samastipur Workshop was established in the year 1881 for overhauling of Steam locomotives, POH of coaches and wagons.

In order to be self-reliant and improve efficiency, workshop for overhauling of 50 coaches per month has been set up at Harnaut on Bakhtiyarpur-Rajgir section of Danapur division of East Central Railway.

The workshop is expected to reach its installed capacity in 2015–16 and recently repairing air-conditioned ICF & LHB coaches as well.

In a wheelchair, he visited the bridge site on the special request of Bihar's chief minister, Shri Krishna Sinha.

The Mokama-Simaria rail link was already saturated and become a major bottleneck for increasing the number of trains between North and South Bihar.

This has been a great hindrance in the industrialization of North Bihar and Nepal, which have become the important trade centre for consumable goods.

Power houses at Barauni and Kanti who are undergoing expansion in North Bihar shall also be benefitted due to lessened congestion .

In the year 1887, a meter gauge rail link between Nirmali and Bhaptiahi (Saraigarh) to Pratapganj up to river Kosi was provided by the Bengal North West Railway.

Due to severe Indo-Nepal earthquake on 15 January 1934 (and regular flooding by river Kosi which was changing course towards West) this rail link along with Raharia railway station washed away in heavy flood owing to meandering nature of river Kosi thus from 1934 to 1956 railway section from Supaul-Pratapganj & Nirmali become non existent.

[6] The Kosi Rail Bridge project included in the budget in the year 2003–04 at an estimated cost of Rs.

This project gained exceptional significance as Silchar to Porbandar East West Corridor from Muzaffarpur to Purnia (NH 27) of NHAI shares the same location for crossing the river.

The New Sone Bridge between Dehri-on-Sone and Sonenagar which has been successfully commissioned on 16 August 2014, will prove a great help in this regard.

A new second bridge on river Gandak has been opened (5.5 km [3.4 mi]) between Sonpur and Hajipur for double line traffic for this section.