Dwapara Yuga or Dvapara yugam is the third among the four Yugas or ages as per Hinduism. This is the next yuga after Treta Yuga and is followed by Kali Yuga. According to Puranas, Dwapara Yuga was begun on Magha Bahula Trayodashi (Magh Krishna Trayodashi), 13th day in second phase of Magha month in South Indian, Marathi and Gujarati calendars. This day corresponds to Falguna month Krishna Trayodashi in North Indian calendars. In 2010, Dwapara Yugadi date is February 11.
As per Puranas and Vedas, Lord Krishna ruled Dwapara Yugam. Lord Vishnu was incarnated as Krishna in Dwapara Yugam. The beginning of Kali Yuga or Kali Yugadi is known as Ugadi or Yugadi festival celebrated in Andhra Pradesh and Karnataka.