Hindu monuments likely existed then, but they have not survived, Maybe since they weren't built of stone. A handful of visuals of recognizable Hindu deities and votive pillars have survived from about one hundred bce to 200 ce. Hindu temple construction started in earnest from your 5th century ce in https://hanumanmandiradelaide.com.au/dr-shri-shyam-sundar-parashar-ji-event/