Hindu monuments probable existed then, but they have not survived, Most likely given that they weren't constructed of stone. Several photographs of recognizable Hindu deities and votive pillars have survived from about one hundred bce to two hundred ce. Hindu temple design commenced in earnest in the fifth century ce https://hanumanmandiradelaide.com.au/shani-dev-temple-in-adelaide-a-sanctuary-of-faith-and-divine-blessings/