One of the major industry of the district of Purba Champaran is Mehsi Button Industry. The pearl button industry at Mehsi has 160 units in 13 panchayats of Mehsi Anchal, employing 20,000 workers indirectly. Fishery is another occupation of the people of East Champaran. A large number of tanks and lakes, nearly 823 Government tanks and 161 private tanks covering 1920 acres of the land is used for fishery development. The economy of the district of Purba Champaran is predominantly dependant on agriculture. The farmers mainly grow Paddy. Apart from it, the farmers grow Sugar Cane, Jute, Lentils and Wheat, Maize, Pulses, Oil Seed. Mangos, Lichhi, Lemon, Guava, Banana, and Coconut are also grown in this region.
The headquarter of Purba Champaran district is Motihari. It is well connected with road, but not with rail.
Popular tourist attractions of Purba Champaran are:
- Motihari
- Sitakund
- Chandi Asthan
- Temple of Lord Shiva at Areraj
- Huseni Lake
- Kesaria (Buddhist stupa of the height of 104 feet)
- Dr. S.K. Sinha Women's College
- S.N.S. College
- L.N.D.College
- M.S.S.G. College
- S.R.A.P. College
- K.C.T.C. College
As per 1991 census, the total population of Purnia district is 18,78,885 of which 9,87,241 are male and 8,91,644 are female. The district is divided into 4 sub divisions, 14 Blocks, 251 Gram Panchayats, and 1296 villages. The river Kosi and Mahananda and their tributaries irrigate different parts of the district.
Since agriculture is the principal occupation of the people of Purnia. Crops grown in this region are paddy, Jute, Wheat, Maize, Moong, Masoor, Mustard linseed, Sugar cane and Potato. Jute is the major cash crop of Purnia district. Fruit plants like coconut, Banana, Mango, Guava, Lemon, Jack Fruit, Pineapple and banana are also grown here. Rearing of livestock like goat, cow and pig is very popular in Purnia. It produces the maximum number of poultry and eggs in Bihar. The Sugar mill at Banmankhi and 716 other small-scale industries provide employment to the people of Purnia.
Purnia district can be accessed by using road and rail services. The nearest railway station of the district is Katihar, and Purnia is also connected with National Highway No. - 31 to the various states of India.
Popular tourist destinations of Purnia district are:
- Kajha Kothi
- Kali Bari Mandir
- Temple of Goddess Puran Devi
- Temple of Mata Asthan, Chuna Pur
- Temple of Goddess Radha Krishna, Madhubani
- Millia Fakhuruddin Ali Ahmed Teachers Training College
- M L Arya College
- Surya N Singh Yadav College
- B N C College


