Poornima, or Purnima, is the full moon day in a traditional Hindu calendar. Purnima date is December 21, 2010. It is the last day in a month in the calendar followed in
North India. Purnima is known as Pournami in South India. Fasting from sunrise to sunset is observed by some Hindus on the day. The Purnima in December is the Margshirsh Poornima.
Dattatreya Jayanthi is observed on the Margshirsh Purnima day. Annapurna Jayanti is also observed on the day.
Purnima day is chosen by many Hindus conduct pujas like the Satyanarayana Puja.
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