Hidden charges: Chandigarh property's biggest surprise

My old house in Sector 24C is finally almost sold, and with the kids moved out, we just want a manageable 3BHK flat, maybe in Mohali or New Chandigarh. Budget is around ₹1.5 Cr, but honestly, every builder quote feels like a moving target. I'm so frustrated with trying to get an actual all-in cost. They quote one price, then suddenly there's PLC, parking fees, and some "development charges" that add lakhs. It's like they deliberately hide things until the last minute. Does price negotiation even work in Chandigarh, or is it just a facade? How much can one realistically knock off? We're looking for societies with good elevators and near hospitals. Anyone else faced this shock with hidden charges popping up late? What did you do?