Mass D.P.T. vaccination was undertaken in Aurangabad in June, 1966. To begin with, vaccinations were carried out in a small area to gain experience for further work. Various media for publicity like newspapers, posters, pamphlets, loudspeaker announcements, cooperation of the local people and school-teachers were used. In addition, health-workers carried out house-to-house visits in the are. 462 children came for the first injection, out of which about 85% were from families which had been previously visited.