A total of 95 dentists and trained dental students of Department of Public Health Dentistry, Sarjug Dental College and Hospital, Darbhanga, Bihar, India, organized an event ‘Largest Oral Hygiene Lesson’ wherein most participants(3,087) were given Oral Health Education on ill effects of Tobacco, prevention of oral diseases and demonstration on oral hygiene maintenance for 37 minutes, at Woodbine Modern School, Darbhanga, Bihar, on October 27, 2014. This event was organized under the guidance of Dr. Amit Kumar, Dr. Bhumika Kamal Badiyani, Dr. Nitesh Kamal.