'Kavach': IIT Delhi's fight against Covid-19 The mask made by IIT Delhi has been certified better in several world class tests Sunday January 31, 2021 12:06 PM, IANS New Delhi: IIT Delhi, one of the most prestigious educational institutions in the country, has set a new record during the Covid times by making more than 50 lakh N95 masks made by indigenous technology. This is a record not only in the country, but across the globe. IIT Delhi director Professor V. Ramgopal Rao told IANS: "We have made a quality mask similar to the N95 based on indigenous technology. This N95 mask can be made available across the country for just Rs 40."