Hindu monuments likely existed then, but they've not survived, Possibly mainly because they weren't built of stone. Some visuals of recognizable Hindu deities and votive pillars have survived from about 100 bce to two hundred ce. Hindu temple design commenced in earnest within the fifth century ce in northern India https://hanumanmandiradelaide.com.au/the-unique-features-of-hanuman-mandir-south-australia/