Hindu monuments likely existed then, but they have not survived, Maybe simply because they were not created of stone. A couple of images 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 https://hanumanmandiradelaide.com.au/shani-dev-temple-in-adelaide-a-sanctuary-of-faith-and-divine-blessings/