Based on the Shivagrha inscription, a general public water challenge to change the class of a river in the vicinity of Shivagrha temple was undertaken in the course of the development of the temple. The river, recognized as the Opak River, now runs north to south about the western facet https://panchmukhihanumanjinearme.blogspot.com/2024/09/hanuman-mandir-south-australia-hindu.html