Margashirsha Purnima is also celebrated as Dattatreya Jayanti. Lord Dattatreya was born on the day of Purnima in the Margashirsha month during Pradosh Kal. According to the holy scriptures, Lord Dattatreya is known as an incarnation of the Trimurti i.e Lord Brahma, Vishnu and Mahesh.
According to the Shrimad Bhagvadgita, Lord Dattatreya acquired knowledge from twenty four masters. The Datta community is said to have originated because of him. Many different temples are dedicated to him throughout India but are more prominent in Southern India.
The month is also dedicated to Lord Vishnu. In the wee hours, the devotees should bathe with roots of the Tulsi plant. While bathing, they should chant the Gayatri Mantra or Namo Narayana mantra. Taking a dip in the holy river Ganga is considered sacred during this month. Fasting is observed on this day. Satyanarayana Katha should be organized on the day as it removes all hurdles from the devotees’ life. It is believed that donation and charity on this day gives thirty two times better results than usual. Therefore, Margashirsha Purnima is also known as Battisi Purnima.
One can visit the temple or organize a yagya at home. Usually, a platform is set up to organize a yagya. Once the havan is over, the prasad is distributed among fellow devotees. Food and donation is offered to Brahmans. Clothes are distributed among the women folk of the family. This day is an ideal one to seek divine blessings.