RERA-MOFA Carpet Area Verification

I own a redevelopment flat in Mumbai and already have the approved CAD/PDF floor-plan files from the builder. What I need is a clear, desk-based audit of those drawings so I know the exact carpet area... (Budget: ₹600 - ₹1500 INR, Jobs: 3D CAD, 3D Drafting, AutoCAD, Building Architecture, CAD/CAM, Civil Engineering, Drafting, Revit)