Distinctions between IAS, IPS, and IFS in the context of the UPSC exam concern their roles and responsibilities within the civil services. IAS (Indian Administrative Service) officers primarily handle administrative functions, policy-making, and governance. IPS (Indian Police Service) officers focus on maintaining law and order, crime prevention, and investigation. IFS (Indian Foreign Service) officers represent India abroad, managing diplomatic relations and international affairs. Each service requires distinct skill sets and knowledge areas, making the preparation and selection process for these services unique within the UPSC framework.