In this exercise, the Aarogya Setu App would play a major role, an official said, adding it would help in categorising area-specific COVID-19 cases. According to sources, areas with substantial numbers of positive cases would fall under red zone where there will be complete restriction. The government will try to provide door-to-door facilities in these areas. The areas with a limited number of cases in the past and with no surge in positive cases recently would be included under the orange zone. Only restricted activities such as limited public transport and farm product harvesting is expected to be allowed in the coronavirus orange zone. The districts with no coronavirus positive cases would fall under the green zone. Exemptions may be given in these sectors as per the government’s plan. Limited movement of people linked to essential services and business may be given extension.