The document presents a proposal for a study on assessing knowledge regarding prevention of complications among hypertensive clients in Eastern Nepal. Hypertension is introduced as a major public health problem and precursor to diseases like heart attack, stroke, and kidney disease. The study aims to assess knowledge regarding prevention of complications and its association with demographic variables. It will use a cross-sectional design involving 285 hypertensive clients surveyed using semi-structured questionnaires. Data analysis will include descriptive statistics and chi-square tests. Results could help modify prevention strategies and awareness of risk factors.