Hindu Monuments most likely existed then, but they have not survived, perhaps as they weren't crafted of stone. Some illustrations or photos of recognizable Hindu deities and votive pillars have survived from about one hundred bce to 200 ce. Hindu temple construction commenced in earnest in the fifth century ce https://hanumanmandiradelaide.com.au/shani-dev-mandir-a-spiritual-hub-in-south-australia/