Karashtami is observed on the Ashtami day (eighth day of waning phase of moon) during the Krishna Paksha of Aswhin month as per traditional Marathi calendar. The corresponding period in
North India is the Krishna Paksha of Kartik month. On Karashtami day, people worship Bhaldevi and women of certain Hindu communities observe a fast. Karashtami ritual is more popular in Maharashtra.
For some Hindu communities in
Maharashtra, Karashtami marks the beginning of Diwali festival. A special Kher is prepared on the day and it distributed as ‘Prasad.’