Completed projects have more hidden costs than under-construction ones

Just moved into Ansal Orchid Bloom last month, and honestly, the hidden costs are killing me. Builder ne jo final bill diya, it's way more than what they said initially. Registration, PLC, maintenance advance, sab upar se laga. Jab hum CRC Joyous bhi dekh rahe the, they made it sound like everything was upfront. Is it just me, ya completed projects mein yeh extra charges ka drama zyada hota hai? CRC Joyous buyers, are you guys getting clear picture on total cost of ownership?