Hindu monuments possible existed then, but they have got not survived, Probably as they weren't constructed of stone. Several photos of recognizable Hindu deities and votive pillars have survived from about 100 bce to 200 ce. Hindu temple design began in earnest through the fifth century ce in northern India https://hanumanmandiradelaide.com.au/establishing-neem-karoli-baba-statue-at-hanuman-temple-south-australia/