Abstract Background: Mosquito borne diseases accounts for about 17% of all infections globally and is a major public health concern in India. The vector-borne diseases reduced the fighting capacity of armies. Vector control and personal protection measures therefore continue to ensure the operational readiness of Armed Forces. The Behavioural Change Communication strategy is part of the control and prevention measures. Methods: A community based cross-sectional study was conducted in a large Naval station in Mumbai during pre and post monsoon period in 2017. Data was collected using a pretested semi-structured questionnaire by directly administering the questionnaire to the sample population. Details on socio-demographic parameters, knowledge about mosquito breeding sites, awareness on mosquito borne diseases, expenses on mosquito control measures and PPM were recorded during the interview. Results: A total of 750 individuals were interviewed in this study. The mean age of the respondents were 32.79 years (95%CI 32.2-33.4). Majority of the respondents were males (75.69%) and most of the families belonged to nuclear (75.4%) type. About 78% of the participants were exposed to mosquito bite at some point in the recent past. However, after BCC intervention about 28% reduction in exposure to mosquito bite was reported. There was significant change in knowledge, attitude and practice towards mosquito borne diseases after Behavioural Change Communication activities. Conclusion: There was a fair level of knowledge, attitude and practice in the community. Imparting education on methods of prevention of mosquito bites and it showed improvement in choices of preventive behaviours in the study population.