A builder floor and an apartment can look like the same money until you pull the costs apart. The floor has a smaller price tag, a real share of land and construction or fit-out work; the apartment has beril white amenities, monthly maintenance, a sinking fund and parking charges that never stop. Compare them on one page and the "cheaper" answer stops being folklore.
Builder Floor vs Apartment Cost Comparator lines up both options in total: purchase price, land share, construction / fit-out cost, registration, amenities, monthly maintenance, property tax, parking and the loan EMI if you finance. It closes with a total upfront cost, a monthly running cost and a cost per sq ft for each - so the financial difference is explicit, not assumed.
Enter the figures you are quoted (or the realistic ones in your area), and read the verdict in lakhs and rupees per month. Everything runs in the browser; nothing is uploaded.