You have already decided to invest in property in Kolkata. The location is final, the budget is set, and after careful comparison, you shortlist a property that seems promising. The builder shares brochures, approvals, and payment plans. Everything looks organised and professional. As discussions move forward, you are asked to pay a booking amount to “lock the unit.” The terms are explained briefly, and you are assured that the remaining details can be handled later. At this point, it feels like a normal step in the process—secure the property now, review everything else gradually.