Finally taking the plunge after years of renting.

My lease ends in 3 months aur ab finally I'm serious about buying. Saalon se rent de raha hoon, ab bas. Dekh raha hoon Sk Builders And Developers ka ek project Meenakshi Garden mein. Builder price toh bata deta hai, but total all-in cost kitni jaati hai, genuinely pata nahi. Stamp duty, registration, PLC, parking, interiors... yeh sab mila ke kitna extra lag jaata hai on a ₹1.8 Cr flat? Aur koi hidden charges toh nahi hote jo possession ke time pe pop up ho jaate hain? Super area aur carpet area ka difference bhi confuse kar raha hai, builders yeh kaise inflate karte hain? Any advice would be great.