Hindu Monuments most likely existed then, but they've not survived, Possibly as they weren't constructed of stone. A number of images of recognizable Hindu deities and votive pillars have survived from about one hundred bce to 200 ce. Hindu temple design began in earnest within the 5th century ce in https://hanumanmandiradelaide.com.au/dr-shri-shyam-sundar-parashar-ji-event/