In 1311, she and her husband, Governor Min Bala of Myaungmya, overthrew her brother, King Hkun Law, and placed their eldest son, Saw O, on the throne.
Gadu reportedly used his younger sister's good looks to seize the governorship of Martaban, the provincial capital.
Gadu asked U Yaing to choose her bathing place in a river spot strategically, where Governor Aleimma of Martaban would see her.
[2][3] Gadu, now styled as King Wareru, went on to declare independence from Pagan in 1287, and to consolidate all three Mon-speaking provinces of Lower Burma by the mid-1290s.
Her rationale was that Bala was too old already, and that their eldest son, Saw O, as a nephew of Wareru, would stand a better chance at gaining the support of the vassals.