Hindu Monuments possible existed then, but they may have not survived, Probably because they were not constructed of stone. Several illustrations or photos of recognizable Hindu deities and votive pillars have survived from about a hundred bce to 200 ce. Hindu temple construction started in earnest in the 5th century https://hanumanmandiradelaide.com.au/the-unique-features-of-hanuman-mandir-south-australia/