Yesterday evening, I had a zoominar with my friends and their friends (friends of friends) on basic Epidemiology of covid-19. It was entirely in Tamil. It was also live telecasted simultaneously in YouTube. About 450 people watched it through zoom as well as YouTube. It was little over 1 hr and followed with QA session which lasted another 1.30 hrs which was equally good. But, unfortunately that was not telecasted in YouTube. By clicking the link one can watch my lecture in YouTube. I got overwhelming feedback that it was so simple, yet very comprehensive. You can also watch it and give your critical feedback. Thank you.