Consumer Redressal

Sir, I am looking for a group housing flat in Noida extension.I querried to some builders like Pachsheel , supertech and ajnara. They all told me that they are just taking 20% loading on the super area but after calculating the layout plans published on thier website, they are doing a loading of 35-40% on each flat.I taked to thier representative on mobile for this issue but they have no anwser or not responding what should i do ? Is there no govt control on this(on loading). Ajnara le garden Super area is 995 sq-ft After 20 % loading the carpet area is appx 790 sq-ft but it comes 556 sq-ft as per the floor plan vailable on thier website.