Mangaldai Municipal Board was constituted in the year 1957 under the Chairmanship of the Dr. Ratneswar Saharia with 10 nos of wards.
Presently the Board is formed with 10(Ten) Nos. of wards. The office of the Chairman of the Board is situated in the Ward No.1 by the side of the National High Way-52 (Presently No.15). The name Darrang was derived from the Bodo ward Darrang which mean ‘Lilabhumi’ (Playground) of gods. According to scholar Late Dineswar Sarma the ward Darrang come from Dawrang which means gate , as therer was direct entry to Bhutan and from there to Nepal,China etc. Gradually this was know Darrang.Mangaldai is located in the west of Guwahati at a distance of 68 kilometers, Mangaldai is a prominent city situated in the Darrang district of the northeastern state of India, Assam. It is the administrative headquarters of the Darrang district. The NH 52 passes through Mangaldoi making it easily accessible from the other parts of state. The nearest airport is at Guwahati.