Indian Railways has converted 5231 non-air-conditioned coaches into isolation coaches in order to augment the capability against COVID-19.
These facilities are part of the integrated COVID plan developed by MoHFW and NITI Ayog and are normally to be used when state facilities are overwhelmed.
It was also stipulated that the Facility should be well ventilated with adequate scope for natural lighting, and Air Conditioning if provided, should be non-ducted which rules out AC Coaches.