Despite the wealth of evidence for unfavourable effects of salt consumption on blood pressure dietary adherence remains unachievable. Behaviour modification by considering the perceived barriers has emerged as a promising control measure. This is a cross sectional study carried out in primary health centre of Chidambaram to assess the level of perceived barriers to salt restriction among known hypertensive patients in an urban population and to find out the various factors influencing the level of barriers. The study assessed known hypertensive patients for their prior behaviours and perceived barriers in following salt restriction along with dietary sodium estimation and clinical details. The barriers perceived by the participants were assessed and categorized as less, moderate and severe using Fredmann test. It was analyzed for association with factors of prior behaviour, duration of disease and treatment regularity using ANOVA. The study revealed no association between socio-demographic factors and perceived barriers yet duration of disease and treatment regularity had positive association with perceived barriers which was statistically significant (p<0.05). Also prior behaviours were statistically associated with perceived barriers (p<0.05). This study highlights the importance of knowledge of perceived barriers to encourage behavioural change for adapting salt restriction as a healthy practice