Hindu monuments probable existed then, but they've got not survived, Probably mainly because they weren't constructed of stone. Several 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 from your 5th century ce https://hanumanmandiradelaide.com.au/shani-dev-temple-in-adelaide-a-sanctuary-of-faith-and-divine-blessings/