Bangalore property buyers: Super area vs carpet area - your experience?

Did a site visit to J P Housing's project near Thanisandra Main Road last weekend. My budget is around 90L-1.1Cr for a 2BHK. Brochure mein super area itna zyada dikha rahe hain, but carpet area toh bohot kam hai yaar. Honestly, lagta hai builders bas numbers inflate karte hain. All-in cost calculate karte time, yeh super area ka trap kaise avoid karein? Is it even possible to negotiate on the super area percentage, or just the base price? Bahut confusions hain. Anyone faced this with projects in Bangalore? Kya karna chahiye?