Ugadi is the New Year's Day for the people of the Deccan region of India. The name Yugadi or Ugadi is derived from the Sanskrit words yuga (age) and adi (beginning): "the beginning of a new age". It falls on a different day every year because the Hindu calendar is a lunisolar calendar. The Saka calendar begins with the month of Chaitra (MarchApril) and Ugadi marks the first day of the new year. Chaitra is the first month in Panchanga which is the Indian calendar.
Ugadi is New Year according to Luni-Solar calendar. Luni-Solar calendars consider the position of the Moon and the position of the Sun to divide the year into months and days. The counter-part of Luni-Solar calendar is Solar calendar which considers only position of the Sun to divide the year into months and days. Because of that Hindu New Year is celebrated twice in the year with different names and at two different times of the year. The Hindu New Year based on Solar calendar is known as Puthandu in Tamil Nadu, Bihu in Assam, Vaisakhi in Punjab, Pana Sankranti in Orissa and Naba Barsha in West Bengal.
While the people of Andhra Pradesh and Karnataka use the term Yugadi/Ugadi for this festival, the people of Maharashtra term the same festival, observed on the same day, Gudi Padwa. Marwari, people of Rajasthan celebrate the same day as their new year day Thapna. Sindhis, people from Sindh, celebrate the same day as their New Year day Cheti Chand. Manipuris also celebrate their New Year (Sajibu nongma panba) on the same day. The Hindu New Year, however, is observed as Baisakhi in Punjab, seri Saja in Himachal Kullu Vally, Puthandu in Tamil Nadu and Pohela Boishakh in West Bengal on April 14 or 15. It is also celebrated in Mauritius. Hindus of Bali and Indonesia also celebrate their new year on the same day as Nyepi. This tri-state festival could be the result of the common rulers from the Satavahana Dynasty