Hindu Monuments probable existed then, but they've not survived, Probably because they were not crafted of stone. A few illustrations or photos of recognizable Hindu deities and votive pillars have survived from about a hundred bce to 200 ce. Hindu temple design commenced in earnest through the fifth century ce https://hanumanmandiradelaide.com.au/hanuman-mandir-adelaide-a-spiritual-sanctuary-in-south-australia/