Puthandu

Puthandu
Observed by	Tamils
Type	Festival, Tamil Nadu, India, Sri Lanka, Mauritius, Malaysia, Singapore
Significance	Tamil New Year
Celebrations	Feasting, gift-giving, visiting homes and temples
Date	First day of Chitterai in the Tamil calendar
2017 date	Friday, April 14
Related to	Burmese New Year, Cambodian New Year, Lao New Year, Malayali New Year, Odia New Year, Sri Lankan New Year, Thai New Year

Puthandu (Tamil புத்தாண்டு), better known as Tamil New Year, is the first day of year on the Tamil calendar and is celebrated by ethnic Tamils in Tamil Nadu and Puducherry in India, Sri Lankan Tamils and Indian Tamils of Sri Lanka, and by Tamils in Malaysia, Singapore, Réunion, Mauritius and Tamil Diaspora. On this day, Tamil people greet each other by saying "Puttāṇṭu vāḻttukkaḷ!" ( புத்தாண்டு வாழ்த்துக்கள்) or "Iṉiya tamiḻ puttāṇṭu nalvāḻttukkaḷ!" (இனிய தமிழ் புத்தாண்டு நல்வாழ்த்துக்கள்). The festive occasion is in keeping with the Hindu solar calendar.

The Tamil New Year follows the vernal equinox and generally falls on 14 April of the Gregorian year. 14 April marks the first day of the traditional Tamil calendar and is a public holiday in both Tamil Nadu and Sri Lanka. The Tropical vernal equinox falls around 22 March, and adding 23 degrees of trepidation or oscillation provides the Hindu sidereal transition or Nirayana Mesha Sankranti (the solar transition into the constellation of Aries). The Tamil calendar thus begins on the same date observed by most traditional calendars in India as in Assam, West Bengal, Kerala, Manipur, Mithila, Odisha, Punjab and Tripura, and in Nepal, Bangladesh, Burma, Cambodia, Laos, Sri Lanka and Thailand. The 60-year cycle is ancient and is observed by most traditional calendars of India and China, and is related to 5 revolutions of Jupiter, or to 60-year orbit of Nakshatras (stars) as described in the Surya Siddhanta.

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