In order to design evidence-based interventions among the young people, it is essential to understand the levels of knowledge about HIV/AIDS, attitude and sexual behaviour of young people. Behavioural Surveillance Surveys (BSS) are internationally standardised tools used for understanding the knowledge, attitude and behaviour of populations. Undertaking BSS is an important effort by NACO and UNICEF to monitor changes in behavioural aspects of young people who are vulnerable to HIV infection. It involved - editing (includes copy-editing, introducing graphs, pulling out blurbs, grammar and spelling checks), inside layout