National Vaccination Day | (Pic: Internet) National Vaccination Day, which falls on March 16 every year, assumes more importance and meaning in the light of people queuing up for their Coronavirus vaccine shots. But before we dwell into the future, here's a little flashback. Also known as Immunisation Day, National Vaccination Day was first observed in 1995 because this was the day when the first polio vaccination was administered in India. And it was in the year 2014 that India was declared polio-free. Remember the Pulse Polio immunisation campaign? It all started in Vellore, Tamil Nadu. It was this town that was 100% polio-free first. And the rest of India followed soon.