Joysagar Tank Joymoti and Gadadhar Singha's eldest son
Rudra Singha (
Sukhrungphaa, 1696–1714) succeeded his father. In honour of the memory of his mother Joymoti,
Rudra Singha built the
Joysagar Tank in 1697 at
Sibsagar. It is believed to be the biggest man-made lake in India, comprising an area covering of land, including its four banks, out of which is filled with fresh water. A 2 km-long earthen water pipeline once ran from the tank to the Rangpur Palace (Kareng Ghar), supplying water to the royal palace.
Phakuwa Doul Rudra Singha also built the Phakuwa (Tai-Ahom : Pha= Heaven; Kuo = Big) Doul in 1703–04, a pyramid-shaped temple constructed before the Rangnath (Shiva) Temple on the banks of the Joysagar Tank. It is said that Rudra Singha, once again to perpetuate the memory of his mother Soti Joymoti, constructed the temple and placed a golden idol of her within it. The circumference of the Doul was about , and its height from base to top was . There were eight brick pillars around the temple.
Joymoti Day Sati Joymoti Divas, commemoration day of Joymoti, is held annually in Assam on 27 March.
Sati Joymoti Award The State Government of Assam has instituted an annual award in the name of Joymoti, presented to women in recognition of excellence in their chosen fields of work. ==Film and theatre==