It is located on an hillock about 24 km south-west of Nahan at an elevation of about 430 m. The temple is an amalgam of Indo-Persian styles of architecture.
In 1570 CE, according to legend, a pindi (a sacred stone; regarded as a symbol of the goddess) appeared in a bag of salt, purchased by Sh Ram Dass.
She told him how she had disappeared from Devban and instructed him to build a Temple at Trilok Pur to establish her PINDI Swaroop (which already existed inside the bag of salt).
She instructed Dass also directed to worship in the name of Mahamaya Balasundari – an infant state of Goddess Vaishno Devi .
The temple of the goddess Mahamaya Bala Sundri ji attracts lakhs of pilgrims from all over Northern India.
An important fair is held at Trilokpur twice a year i.e.in the month of Chaitra and Ashvina on Sudi ashtmi to chaudas (from the 8th to the 14th of the bright half).
Mata Bala Sundri is known as Kul Devi of many castes (e.g., Kshatriyas, Brahmana, Baniyas, Jats, Kamboj, etc.)