Dalsinghsarai
Dalsinghsarai is a City and Municipal Council in the Samastipur District of Bihar, India. It is also one of the subdivisions and blocks of Bihar. It is situated on the bank of the river Balan.

Mr. Alok Kumar Mehta is the M.L.A of Ujiyarpur seat who is currently Minister of Land Revenue in Bihar State government and Mr. Nityanand Rai is the M.P of Ujiyarpur who is currently become the state home minister in center.
Dalsinghsarai has a diverse population, but Hindus are in majority whereas Muslims are in minority. In the past, Dalsinghsarai came under the Mithila Kingdom so here we can find Mithila culture very easily. Maithili language is mainly spoken here as well as Hindi. Vidyapatidham, which is known as the "Deoghar of Bihar", lies under Dalsinghsarai subdivision. 
Dalsinghsarai block comprises 45 villages like Gauspur Inaet, Ajnaul, Pagra, Balo chalk, etc. It is well connected by the rest of the country through railway or road network.

History 
It was named after 9th guru of Aghori named Dalpat Singh. Before that, it was called Aghoria Ghat.
 
This city has been the center of indigo cultivation during British rule. In 1902, An Indigo Research Institute was also opened close to this city in Pusa.
There was also a cigarette factory operating under British rule because of high volume of tobacco and indigo farming in nearby areas.

There is a myth about the city is that Dalsinghsarai was the first railway station of Bihar and the second of India.

Before 2010 Dalsinghsarai was a Vidhan sabha constituency but in 2010 Delimitation Commission of India snatch its status of Vidhan sabha constituency. Now it falls under "Ujiarpur" legislative constituency and "Ujiarpur" Lok sabha constituency.

Demographics
 India census, Dalsinghsarai Nagar Parishad has population of 55,562 of which 28,402 are males while 27,160 are females as per report released by Census India 2011. Population of children with age of 0–6 is 8640 which is 15.55% of total population of Dalsinghsarai. 
The river traversing the city is Balan which is originated near Kanti (Muzaffarpur).

Roadways
Dalsinghsarai is well connected by roads . This city is situated . NH-122 was previously numbered NH-28 .This NH is very important due to Barauni Refinery.Three new flyover is proposed in Dalsinghsarai, first at NH-122 at tri-junction of SH-88, NH-122 and Vidyapatidham-Dalsinghsarai Road, Second at 32 number railway crossing and third at under construction Bypass for SH-88 to bypass dalsinghsarai market.It is also connected to SH-88 which connects it from Rosera and many more places.A new four lane greenfield highway is proposed between Dalsinghsarai and Purnia via Simri Bhaktiyarpur(Saharsa) which minimise the travel distance and provide hassle free travel to East India.Under construction World's longest Kacchi Dargha-Bidupur bridge which is a part of   "Amas-Darbhanga expressway"  will be nearly 25 km from the town that provide North Bihar people's a new way to reach Patna and South Bihar.Tajpur-Bhaktiyarpur Four lane Bridge's work also resumed in 2023 which work as a new path to Rajgir,Nalanda in less hours.Rajendra setu(Simaria) and New Mokama-Simaria Bridge which connects north Bihar to South Bihar,West Bengal,Jharkhand etc is approx. 35 km

Railways
There is a myth about Dalsinghsarai railway station, that it is the 2nd oldest railway station in India and 1st railway station in Bihar but "Royapuram"  (Tamilnadu) is the second oldest railway station(operational) of India. If we see history we would find Maharaja of Darbhanga feels the need of a railway line in Mithila, so on his own money they built (probably first in Bihar) a railway line from Darbhanga to Simaria which passes through Dalsinghsarai. Dalsinghsarai and its localities are known for its "fresh vegetables" and  "tobacco" (that's why in past Britishers established a Cigratte factory in the area) which transported through railways to the rest of the country. This is the main railway station between Barauni junction and Samastipur junction with many modern facilities. Many major trains like Garib rath superfast express, Vaishali Super fast express, Avadh Assam Express, Bagh Express etc. stop here. It is well connected with other parts of country via railway. It lies under the Sonpur Division of the East Central Railway. Railway will build a new Dalsinghsarai-Vidyapathidham Bypass Railway line of 10 km in upcoming years.In 2023 Indian Railway choose Dalsinghsarai in "Amrit Bharat Railway scheme" for Redevelopment of the station in phased manner and also issues money in the budget of 2023.But the most demanding and awaited project in the city is 32 no. Flyover which is neglected this time also,only 1000 rupees in 2023 budget for the project,in past Mr.Nitin Gadkari twitted for the construction in recent year,we are in 2023 but no progress could be seen there.There are approx. 42 passenger trains and 17 freight trains stop at Dalsinghsarai railway station.

References

Cities and towns in Samastipur district