Kushasthali

Mythological name of today’s Ujjain.

When Brahma created the world, he asked Vishnu to sustain it. Vishnu asked him to allot him a place. Brahma took a handful of Kusha Grass and threw it on the earth. Vishnu sat down where the grass fell on the ground.

Another name of Ujjain is Avanti.

Read about Ujjain here
https://www.holydham.com/ujjain