Hajipur (/ˈhɑːdʒɪpʊər/ HAH-jip-oor,[8] Hindi: [ˈɦaːdʒiːpʊr] ⓘ) is the headquarters and largest city of Vaishali district of the state of Bihar in India.

[13][14][15] Mahatma Gandhi Setu, one of the longest bridges in the world at 5.75 kilometres (3.57 mi) links Hajipur to Patna.

Hajipur is the only twin city of Patna and lies nearest to the capital and shares most of its government works, headquarters, educational institutions.

[28] In British India, Hajipur was a small town in the Muzaffarpur district situated on the confluence of the Ganges and Gandak.

Hajipur features conspicuously in the history of struggles between Emperor Akbar and the rebellious Afghan Karrani rulers of Bengal, being twice besieged and captured by the imperial troops, in 1572 and 1574.

Hajipur is located 10 km from Patna, transversely on the sacred river Ganga and is budding as one of the foremost profit-making and manufacturing region of the state.

A good network of rail, road, and water transport exists in the city, connecting it with other parts of the district as well as state and country.

[33] Hajipur subdivision became home to the Salim Ali—Jubba Sahni Bird Sanctuary[34] (Baraila Lake), which has an area of 2 km2 (0.8 sq mi), established in 1997.

[37] The table below details historical monthly averages for climate variables— Culturally and linguistically, Hajipur is similar to that of Patna.

[44][45] The Export Promotion Industrial Park, is a multiple-product export processing zone in East India developed by the Ministry of Commerce and Industry, the Government of Bihar and by the administrative body BIADA located in Hajipur, In the administrative Vaishali district, has 94 acres (38 ha; 0.147 sq mi) of land with modern infrastructure.

As per local folklore, it is said to have been in existence since the Ramayana period and Shri Ram is believed to have visited this place on his way to Janakpur, where his footprints are worshiped.

According to this legend, "The famous fight of Gaja (elephant)-Graah (crocodile), which is well covered in Indian scriptures, is the reason behind people asking -kaun haara.

The depiction of fighting Gaja—Graah is an emblem for the city and is prominently shown on the Hajipur railway station's dome and other notable places.

[52] Jami Masjid is one of the states' oldest mosques erected in 1587 AD during the Mughal rule by Makhsus Shah, the contemporary governor of Bihar Sharif according to Akbarnamah.

The place goes lively at the onset of winter with the mass holy deep in river Gandak by Hindu at Kaun—haara Ghat.

[56] The visitors can stay in hotels at Hajipur or they can hire luxury Swiss cottages erected on sand dunes beside river Gandak.

[88] Freedom Fighter Sports Person Writer Politicians Hajipur city has a modern railway zonal office.

[108][109] Luxury bus service in Hajipur running via NH-31 connects several neighbouring cities is provided by the Bihar State Road Transport Corporation.

[112] Asia's longest river bridge, the Mahatma Gandhi Setu (built 1982), is in Hajipur and connects the city to Patna across the Ganga.

[114][115] The city is primarily served by Lok Nayak Jayaprakash Airport, Patna (PAT)[116] - which is just 21.2 km (13.2 miles) SW or an hour drive from Hajipur.

Hajipur is well connected with roads to various major cities of Bihar like Patna, Sonpur, Vaishali, Muzaffarpur, Samastipur, and Chhapra.

[127][128] Hajipur has the following FM radio stations— Electricity supply to the city is regulated and distributed by the Bihar State Power Holding Company Limited.

[135][136][137] Hajipur has its own home network of the Bharat Sanchar Nigam Limited (BSNL), India's state-owned telecom and internet services provider.

[139] Among private enterprises, Bharti Airtel, Reliance Jio, Vodafone Idea and Tata Teleservices[140] are the leading telephone and cell phone service providers in the city.