As experts warn of a possible third wave of COVID-19, India has begun laying the foundation to be able to handle any such crisis in the future. Installing pressure swing adsorption (PSA) oxygen plants across different hospitals in India, setting up modular hospitals and ‘Project O2’ are some steps being taken by the Defence Research & Development Organisation (DRDO) and the health ministry. As per DRDO, a total of 850 oxygen plants are being set up in various districts of the country to cater to the needs of the country in fighting the pandemic.