Hypertension is abnormal elevation of blood pressure. It’s associated with significant morbidity and mortality from vascular disease (heart failure, ischemic heart disease, cerebrovascular disease and renal failure). Hypertension is asymptomatic, although rarely in severe hypertension, headaches and visual disturbances occur. Aim of study: The aim of the study was to assess the risk factors involved in hypertension among the patients visiting a tertiary hospital. To identify the role of major risk factors like smoking, hyperlipidemia, diet and exercise in hypertension, smoking in hypertension and also to identify the role of physical activity in hypertension. Study Design: A cross sectional study Place and duration of study: This study was conducted in Jinnah hospital, Lahore Time period during which the study is conducted was three months from February 2019 to April 2019. Materials & Methods: This was an observational descriptive study conducted in the department of medicine Jinnah hospital, Lahore. The study comprised of convenient samples of 100 patients above 40 years of age having hypertension. The duration of study was of about 3 months from February 2019 to April 2019.The data was tabulated and analyzed using SPSS version 13. Results: Hypertension is more common among females. Maximum no of patients is between the age of 40-60 years. 20% hypertensives are government employe,16% self-employee, 25% housewives, retired 15% and 24% unemployed. Smoking is a common risk factor of hypertension among males that can affect in all the age groups. Physically inactive people are more prone to get hypertension. Hypertension is more prevalent among the people who take more fried food, salty and oily products.