Tuljabhavani Nidrakal is a holy period at the famous Tulja Bhavani Temple in Maharashtra. Bhavani Devi Nidrakal in 2023 is from October 7 to October 14. It is observed from from the 8th day of the Bhadrapada Krishna Paksha to no moon day (Amavasya) in Bhadrapad month as per traditional Hindu lunar calendar followed in Maharashtra.
Nidrakaal is when the Goddess remains in cosmic sleep. Such periods are observed in certain Shakti Temples.