In 1914 Rev. George Richard Kampfer of the
American Baptist Foreign Mission Society (ABFMS) who was stationed in
Guwahati came to Borigaon and established the first Baptist church. It was in the year 1914 under the guidance of Rev. Kampfer, the Baptist churches of
Udalguri district (then Mangaldai Sub division) of Assam came together unitedly and formed a Christian Organization called "Mangaldai Baptist Christian Association". At the time of formation there were only 5 churches. In the year 1983 when
Darrang district was divided into two districts by the government it was in that pattern the association was renamed as "Darrang Baptist Christian Association". Again while the Bodoland Territorial Council was created by the Central government as separate administration for the Boros it was then called "Boro Baptist Convention" in 2003. The American Baptist Foreign Mission Society (ABFMS) missionaries were in charge of the "Mangaldai Baptist Christian Association" (MBCA) till 1945 when they handed over the MBCA to the
Baptist General Conference, USA. Rev. Johnson of the Baptist General Conference built the present mission center at Harisinga. The Harisinga Mission school was developed and the Baptist Christian Hospital was constructed. The missionaries left in 1969 and handed over the administration of the association to the locals. As of 2014, the convention had 92 full-time workers including departmental secretaries. ==Organization==