After crossing the sea and killing the she-demon, Sihikaa,
Hanuman decided to enter the heavily guarded city of Lanka to search for
However, a very powerful demon by the name of Lankini always guarded
the city. When she saw Hanuman approaching the gates of the city, she
stopped him. Hanuman insisted on going in but she punched him and Hanuman
punched her back.
Lankini was surprised at the monkey's strength and looked at him
closely with a puzzled look on her face. At once, she recognised him. She
said, "Brahma had predicted that the day a monkey hits you, know that
Ravana and all the other demons would be killed."
She set Hanuman free and allowed him to enter Lanka.