Navaratri is a nine nights (and ten days) Hindu festival, celebrated in the autumn every year. It is observed for different reasons and celebrated differently in various parts of the Indian subcontinent.
Theoretically, there are four seasonal Navratri. However, in practice, it is the post-monsoon autumn festival called Sharada Navratri that is the most observed in the honor of the divine feminine Devi Durga .

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