14th century Tinsukia is the site of
Bengmara, which was originally known as
Changmai Pathar. It was the capital of the
Matak kingdom which was founded by Swargadeo
Sarbananda Singha. Swargadeo Sarbananda Singha, known as Mezara, was a member of the erstwhile
Chutia royal family and rose to become an able administrator. Mezara adopted the name Sarbananda Singha after he became the king.
Swargadeo Sarbananda Singha introduced coins in his name and in Saka 1716 and 1717, he inscribed the title Swargadeo in the coins. ==Geography==