Sibsagar is a district in upper Assam. It is called Shivasagar these days. It is an important historical town in Assam. It drives its name from a huge water tank named after the Ahom King Sib Singh. Sagar means a large water body. Ahoms are not the original inhabitants of Assam. They came here from China through Patkai range of hills. Slowly from invaders, they stayed here bewitched by the beauty of the land, lush green woods and hills. During there early days they subdued local Chutia and Kachari kings.
They established their capital in Rongpur which falls in this district. They were very fond of very huge water tanks and made so many of them. The water never dries in them indicating that they are fed by underground water sources.
The town is famous for silk clothes. In those times, there was a loom in every home on which women of the house weaved clothes of silk and cotton not for sale but for the family folks. Silk was obtained from three kinds of worms namely eri (Attacus ricini), Muga(anthraea assama) & Pat(Bombyx textor). they produce different kinds of silk. These silk worms feed on leaves of different trees. Eri feeds on castor oil plant, Muga worms feed on sum-tree and Pat worms on mulberry trees. A fine white thread which is much valued is obtained by feeding Muga on chapa (Magnolia griffithi) and mezankuri (tetranthera polyantha). During British times, Muga production ousted all other forms. Pat production was lowest.
These days, there are many shops which do roaring business in silk materials. Silk clothes are acquired from Manipur mostly these days. In the town there is a popular shops called Sangeeta dealing in all sorts of silk materials. Most of the visitors to the city make it a point to buy tea, silk dress materials and visit the sibsagar tank and famous Shiva temple called Shiv dhol.