According to Tamil scholars, Sethiathoppu was formed as a settlement when Chola king Rajendra I moved his capital from Thanjavur to Gangaikonda Cholapuram, which lies 20 km south.
The establishment of Sethiathoppu is attributed to the Chola King Rajendra I's relocation of his capital from Thanjavur to Gangaikonda Cholapuram, a distance of 20 kilometers south.