Situated to the south of Gaya, the Brahmayoni Hill, the highest hill in Gaya is named after a natural fissure on its top which is believed to represent the female energy or yoni of the God Brahma.

The hill houses Brahmayoni Gufa and Maitreyiyoni Gufa. In a small temple on the hill a five-headed female image is worshipped as a female energy of Brahma i.e. Brahmayoni. This temple was constructed by a Maratha-chieftain, Rao Bhau Saheb, in the bygone era and has a flight of 424 steps.

The Brahmayoni hill is a sacred place for the Hindus and pindas are offered here during the Pitripaksha mela in large numbers.

Source: https://brandbharat.com/english/bihar/districts/gaya/brahmayoni_hill_gaya.html