The real deal of buying Bengaluru property sight unseen

Did some research on NRI investment options in Bengaluru. Parents are pushing for a 2BHK in Whitefield or Sarjapur Road, maybe Prestige Group. I'm abroad, so can't visit. Agent bol raha hai sab online ho jaayega. But is it safe? Kya without actually seeing the property, it's a good idea? What are the hidden risks, yaar?