No founding act, founder or establishment record is documented for the Tamil New Year, which falls on the first day of Chithirai, the opening month of the Tamil solar calendar. Tamil Nadu's statutory history on the question runs through an Act of 2008 that moved the official new year to the month of Thai and a later Act that repealed it.
A conference, and a different month
The argument that the Tamil year should open elsewhere is older than any statute. The DMK's own account, reported by The News Minute, is that Tamil scholars led by Maraimalai Adigal met at Pachaiyappa's College in Chennai in 1921 and resolved that the year should begin on the first of Thai.
The disagreement has since been put in plain academic terms. S. Arokianathan, a retired professor of Tamil at Pondicherry University, told Scroll.in that a new year at Pongal time is "based on Tamil culture" while one in April is "based on Sanskrit astrology panchangam".


