States and Union territories will undertake a mock drill across all health facilities on Tuesday to ensure the operational readiness of the Covid-dedicated facilities, with a specific focus on oxygen plants, ventilators, logistics and human resources, according to official sources.States and Union territories will undertake a mock drill across all health facilities on Tuesday to ensure the operational readiness of the Covid-dedicated facilities, with a specific focus on oxygen plants, ventilators, logistics and human resources, according to official sources.