What builders really hide in the final possession costs

RERA ne kuch nahi badla, hidden charges ab bhi builders ka favourite game hai. Everyone glorifies DLF ya Godrej ke projects in Saket, but nobody talks about the actual carpet area vs super area games, aur woh last-minute PLC ya EDC demands. I work in real estate, buying in Dwarka, and I'm seeing the same old tricks. Tata Housing ya Omaxe ka kya scene hai? Koi builder hai jo truly transparent ho? Disagree? Tell me why.