Kojagiri Purnima is a religious festival celebrated on the full moon day of the Hindu lunar month of Ashvin (September to October), marking the end of the monsoon season. It is also known as Sharad Purnima, Kumara Purnima, Navanna Purnima, Kojagrat Purnima, or Kaumudi Purnima. The festival is celebrated in different ways in various cultural regions across South Asia.

On this day, many Hindu divine pairs like Radha Krishna, Shiva Parvati, and Lakshmi Narayana are worshipped along with the Chandra, the moon deity, and are offered flowers and kheer (sweet dish made of rice and milk) . Deities in temples are usually dressed in white color signifying the brightness of the moon. Many people observe full-day fasting on this night.

The festival is dedicated to Goddess Lakshmi, the goddess of prosperity and good fortune. It is believed that on this auspicious day, Maa Lakshmi visits her devotees and blesses them with good luck, wealth, and prosperity. To invoke blessings from the Goddess, Lakshmi Puja must be performed correctly with a recital of Sri Suktam. Some also follow a Jagran (night vigil) on Kojagiri Purnima or Sharad Purnima, believing Maa Lakshmi will visit their home in the night and bless them with prosperity.

Different Indian states have different meanings attached to the Kojagiri Purnima and Sharad Purnima. Some people celebrate the night by offering food to Maa Lakshmi, the goddess of wealth. Some people celebrate the Sharad Purnima by celebrating the eldest daughters at home. Some others celebrate by playing dandiya all night and dancing to the tunes of joy.

In summary, Kojagiri Purnima is a Hindu festival celebrated on the full moon day of the Hindu lunar month of Ashvin, marking the end of the monsoon season. It is dedicated to Goddess Lakshmi and is celebrated in various ways across South Asia.