Around 500 mtrs from Indraprastha and located at an altitude of 4800 feet is Adhkuwari. Adkuwari is the half way mark on the track as it is situated at a distance of nearly 6 kms from Katra. Adhkuwari is one of the most important Darshans on the visit, second only to the main Darshans at the Holy Cave of Mata Vaishno Devi.

The term Adhkuwari is believed to have come from Adi kumari, which means “The Eternal Virgin”. According to the legend, when Vaishnavi, in the form of a small girl, disappeared from the Bhandaara organized by Pandit Shridhar, she halted at Banganga and Charan Paduka. From there she reached Adhkuwari, where, in a small womb shaped cave she meditated and observed spiritual discipline (Tapasya) for nine long months. The exact spot where she is believed to have meditated is located at the right hand side inside the cave and is shaped like a womb. Since Vaishnavi had observed spiritual discipline in a womb shaped cave for a period of nine months, this cave has become popular by the name of Garbh Joon, which has come from the term Garbh Yoni meaning the Womb. It is generally believed that by merely passing through this cave, a devotee’s sins are cleansed and his soul becomes pious again.

When during her meditation she realized that Bhairon Nath had approached the cave in her search, she created an exit at the other end with her trident and proceeded towards the Holy Cave.

Source:

https://www.maavaishnodevi.org/adhkuwari.aspx

http://jkadworld.com/mata-vaishno-devi/