Other units that have persisted are those of area – the 'ma' (not to be confused with the dollar-cent) and the ‘ground’, both used to measure land and the ‘molam’ which has been relegated to measuring the length of a sandanam garland sold on streets.
There are several similarities between the measurement system used in Tamil Nadu and that used by the Indus Valley civilisation.
Recent excavation studies from Keeḻadi reveal existence of an older non-vedic civilisation in Tamil Nadu.
[1] New discovery suggest possibilities of source of ancient Indian mathematicians in Tamil Nadu.
[2][clarification needed] In Jaffna, Sri Lanka For House property Varaku Culture (V.C.)