The RERA Act of 2016 introduced a clear definition of carpet area, specifying it as the net usable floor area within an apartment, excluding external walls, service shafts, and exclusive outdoor spaces. This standardization brought transparency to real estate transactions, ensuring buyers understand their actual living space and preventing disputes arising from varied builder calculations.source https://timesofindia.indiatimes.com/real-estate/news/understanding-carpet-area-as-per-the-rera-act-and-what-it-covers/articleshow/127783713.cms