Vindhyachala

A mountain (achala) that became jealous of Mount Meru and grew higher and higher.

There are two variants of the myth.

The earth threatened to tip over or Vindhya hindered the sun’s course with its height.

Indra asked sage Agastya to put Vindhya in his place.

Read the story here
http://hindumythologyforgennext.blogspot.com/2012/01/sage-agastya-and-vindhya-mountains.html