Hindu monuments possible existed then, but they have not survived, Possibly since they were not constructed of stone. A couple of photographs of recognizable Hindu deities and votive pillars have survived from about one hundred bce to 200 ce. Hindu temple design commenced in earnest from the 5th century ce https://hanumanmandiradelaide.com.au/shani-dev-temple-in-adelaide-a-sanctuary-of-faith-and-divine-blessings/