[1] In 2011, the Sonpur Junction was given a facelift with a wider approach roads and greenery in and around the station premises at the cost of ₹20 million (US$230,000).

The work on doubling of tracks on 7 kilometres (4.3 mi) tracks between Sonpur and Hajipur has been carried on since past few years and is set to be completed by the end of 2012.

[2] In 2009, the construction of India's longest road-cum-rail bridge, the Digha–Sonpur rail–road bridge, was underway on the banks on the Ganges nearby, to connect Patna to Pahleja Ghat.

[2] In October 2016, Railways inaugurated a Happiness Junction at the Sonepur railway station, with an objective to provide books and several other entertainment tools to passengers waiting for trains.

[7] The distance from nearby stations are: The nearest airports to Sonpur Junction are: