Photrabot is the 10th month of lunar calendar in Khmer, that celebrate the big ancestral ceremony call “ Pchum Ben”. Very big ceremony in Khmer traditional ceremony that people make glutinous rice mix with riped banana and coconut flesh wrapped with banana leaves and boiled until well-done and then to pray to ancestors and the army of King Jayavarman VII who died during war with Cham from 1177 AD - 1181AD. The inscription of Tanei temple mention about this ancestral ceremony. People in countryside of Surin province still call this 10 th month of lunar calendar Photabot or photrabot. In Surin called this ceremony Ben Tuch Ben Thom, for 15 days.