Hindu Monuments probable existed then, but they may have not survived, Possibly since they were not developed of stone. A few photographs of recognizable Hindu deities and votive pillars have survived from about a hundred bce to 200 ce. Hindu temple building began in earnest through the fifth century ce https://hanumanmandiradelaide.com.au/celebrating-hanuman-jayanti-2025-at-hanuman-mandir-south-australia/