Rubella virus infection during pregnancy is an important cause of blindness, deafness, congenital heart disease, and mental retardation of the foetus. Multiple sero-surveys of rubella antibody among reproductive aged females of Bangladesh showed that 20-30% of them remain susceptible to rubella as rubella vaccination is yet not included in our national immunization program for adolescent and adult girls. The present study was designed to conduct a sero-survey among unmarried girls of 16 to 25 years to assess their serological status in terms of natural rubella infection and vaccinate the rubella susceptible individuals with a single dose of rubella vaccine to evaluate the immunogenicity of the vaccine.