Diabetes mellitus is a group of metabolic diseases characterized by hyperglycemia resulting from defects in insulin secretion, insulin action, or both. It is expected to increase up to 7.7% and will affect almost 439 million adults globally by 2030. The main aim of the study was to assess the demographic details of diabetic patients and their knowledge, attitude and practice regarding diabetes in Lahore, Pakistan. The prospective cross sectional study was done to know the level of KAP of diabetic population of the city; we visited different hospital’s endocrinology and diabetes departments. Face to face interview was done by using structured questionnaire comprises of total 26 questions. Of the 350 participants 221(63.1%) were women and 129(36.9%) were men. The major age groups were of <39years 106(30.3%), 60> years 83(23.7%) and of 40-49years 89(25.4%). Around 185(52.9%) have done graduation and 29(8.3%) are illiterate. About 231(66%) have type 2 diabetes and 119(34%) suffering from type 1 diabetes. Almost 228(65.1%) admits that they have family history of diabetes. Major cause of diabetes as participants’ claims is hereditary and obesity, both 118(33.7%). The frequent urination and increased thirst and hunger is the symptoms (62.9%). About 187(53.4%) of participants do exercise regularly and 194 (55.4%) follow planned diet. About 157(44.9%) had never any eye examination and 97(27.7%) had never any urine test. Around 236(67.4%) had never any lipid profile test. The study shows that participants have good knowledge of diabetes and have positive attitude towards DM but they have low or average practice scores.