The Purnima or full moon day in Ashwin month (September – October) is observed as Maharas Purnima in Braj region of North India . Maharas Purnima 2023 date is October 28. It is believed that divine Raas Lila of Sri Krishna with Radha and Gopis happened on the night of Maharas Purnima. Due to this importance, the day is also referred as Raas Lila Divas or Ras Lila day. A fasting (Vrata) is also observed on the day. The day is popularly known as Sharad Purnima.
The significance of Sharad Purnima is mentioned in the 10th chapter of the Srimad Bhagavad Purana. It is also said that the moon is close to the earth on the day and due to this the rays of the moon has several curative properties.