Hindu monuments likely existed then, but they've got not survived, Probably because they were not developed of stone. A couple of pictures of recognizable Hindu deities and votive pillars have survived from about a hundred bce to 200 ce. Hindu temple design commenced in earnest in the 5th century ce https://hanumanmandiradelaide.com.au/shri-pandokhar-sarkar-to-visit-australia-in-october-2024/