Hindu monuments possible existed then, but they've got not survived, Maybe since they were not crafted of stone. A number of pictures of recognizable Hindu deities and votive pillars have survived from about a hundred bce to 200 ce. Hindu temple development began in earnest with the fifth century ce https://hanumanmandiradelaide.com.au/explore-the-sacred-essence-of-the-hindu-temple-in-adelaide/