Working in real estate, buying for myself is humbling

Been in this market for years, but buying my own place is a whole different ballgame. Everyone talks about negotiation, but honestly, how much can you *really* knock off a 3BHK in Basavanagudi? Builders like Keya Homes pretend no-discount, but I know there's wiggle room. What about those hidden costs at possession? Change my mind.