Hindu Monuments likely existed then, but they have not survived, Possibly because they were not designed of stone. A few photographs of recognizable Hindu deities and votive pillars have survived from about a hundred bce to two hundred ce. Hindu temple construction began in earnest in the fifth century ce https://hanumanmandiradelaide.com.au/establishing-neem-karoli-baba-statue-at-hanuman-temple-south-australia/