Hindu Monuments likely existed then, but they may have not survived, perhaps as they were not constructed of stone. A couple of photos of recognizable Hindu deities and votive pillars have survived from about one hundred bce to 200 ce. Hindu temple design began in earnest from the 5th century https://hanumanmandiradelaide.com.au/shani-dev-mandir-a-spiritual-hub-in-south-australia/