It is an important festival particularly to the Vaishnavism tradition of Hinduism. Dance-drama enactments of the life of Krishna according to the Bhagavata Purana (such as Rasa lila or Krishna Lila), devotional singing through the midnight when Krishna is believed to have been born, fasting (upavasa), a night vigil (jagarana), and a festival (mahotsava) on the following day are a part of the Janmashtami celebrations.
It is celebrated particularly in Mathura and Brindavan, along with major Vaishnava and non-sectarian communities found in Manipur, Assam, West Bengal, Odisha, Madhya Pradesh, Rajasthan, Gujarat, Maharashtra, Karnataka, Kerala, Tamil Nadu, Andhra Pradesh and other regions.