My Rajkot 3BHK: Super area vs actual cost surprises

Just got possession of my 3BHK on Kalawad Road two months back. Honestly, the super area vs carpet area difference is a shocker. Ansal API ne 1500 sqft super area bola, but actual carpet area barely 1000 sqft nikla. This super area trap is real in Rajkot, I guess? Plus, the 'all-inclusive' price was nowhere near final. My ₹70L flat ended up costing ₹78L with PLC, parking, and unexpected charges like maintenance deposit, electricity setup. Negotiation bhi hardly 2-3% hua. Kya Rajkot mein yeh sab common hai, aur builders kitna budge karte hain?