Adolescents are a period of curative madness in which every teenager has to remake his personality to free himself/herself from childhood, from parent and establish a new identity. Apart from the emotional and psychological independence, an adolescent has to deal with the ongoing physical and sexual changes in the body. He /she must have the intelligence to deal with external forces over which he/she has little control. Adolescents, mainly boys are very energetic at this stage and are prone to road accidents because of fast and negligent driving. They are at particular risk of violent deaths due to adventurous, great risk-taking and aggressive behavior. (Neelam Takur 2007) The goal of first aid is to save a life, prevent injury or illness from worsening or to help the speedy recovery. First aid and basic life support are so important to teach basic first aid and should be compulsory in all schools. Without any delay first aid saves a person’s life, it is always better as it is said that “Preparedness is a key element of first-aid”. The approach of the study was quantitative research with an evaluative approach. The study was conducted in Government High School Thirunanthikarai at Kulasekharam, Kanyakumari District. The population was Adolescents who are studying in classes of 8th and 9th standard (13-14 years). Purposive sampling technique was used. The sample size was 60 Adolescents in the age group. The tools used for data collection were demographic variables and structured knowledge questionnaire. The analysis revealed that there was a significant improvement in the mean knowledge. The pretest knowledge score was 23.4 and posttest knowledge score was 78.2. Video-Assisted Teaching Programme improved the knowledge level. The ‘t’ value found that 28.2 (P < 0.05 level of significance). That showed that there was a significant improvement in the level of knowledge after the Video Assisted Teaching Programme.