Correct Answer : Option (D) - Polio
On the Polio National Immunization Day scheduled on January 31, 2021, around 89 lakh children were given polio drops under National Polio Immunisation drive across the country.
President Ram Nath Kovind launched the first round of Pulse Polio Programme 2021. Over seven lakh booths were set up for implementing the drive. A house-to-house surveillance will also be provided to vaccinate the remaining children.