A six-faced terracotta die and farming implements made of granite have been unearthed during the seventh phase of excavation at Keezhadi.
During this phase, excavations are being carried out in three trenches at Keezhadi, three at Konthagai and one at Agaram.
The Black and red-coloured potsherds and portions of farming implements, such as a plow made of granite, were also unearthed here.
The use of die made of two different materials indicates that various strata of society existed (the rich used ivory die and the poor used terracotta) and shows that the civilization had enriched arithmetic knowledge.