शिवमात्मनि पश्यन्ति प्रतिमासु न योगिनः । It Is usually thought that this temple has Swayam-bhu of Lord Hanumana meaning that Hanumana himself had appeared here. Additionally it is explained which the Every time the drinking water amount of river Yamuna raises, then the drinking water will come into this temple https://www.slideserve.com/Jamesh9/discovering-the-spiritual-heart-of-australia-the-role-of-hanuman-mandirs