Ululudhvani

Ululudhvani (also known as Jokara, Uruli, Hula Huli or Hulu Huli) is a tradition in Assam, Bengal, Odisha, Kerala and Tamil Nadu, where during weddings and other festivals, women ululate. It symbolizes festivity and prosperity. It is performed heavily in the Durga Puja and Kali Puja festivities in Bengal.

Origin
This practice has its origin in customs and rituals of the prehistoric culture of Bengal.