Mahishi

In Hindu mythology, the name of a
buffalo-demoness killed by the god
Aiyappa. Mahishi receives the boon that
she can only be killed by a person not
born from the union of male and female.
To circumvent this boon, Aiyappa is
born of a union of the gods Shiva and
Vishnu, when the latter takes the form
of the enchantress Mohini. When
Mahishi is killed, the female figure of
Lila rises from her body. Lila wants to
marry Aiyappa; he agrees that he will
marry her in the year a celibate pilgrim
does not come to visit him at Shabari
Malai. Since women of childbearing age
are forbidden to visit Shabari Malai, and
those men who come are required to be
celibate, Lila is still waiting for this vow
to be fulfilled.