The Additional Director General of India Meteorological Department (IMD), Anand Sharma has suggested to put mustard oil in nose to combat air pollution. "Poor category is definitely harmful. Luckily, people are using masks because of COVID-19, these masks prevent from fighting the virus and will also help in fighting pollutants. In addition to that, people can also use natural remedies, which earlier people used in their daily lives, like they can put mustard oil in their nose that trap some of the particles," said Anand Sharma. Sharma also said that Delhi's air quality is to remain poor in coming days.