The goal of this clinical trial is to explore the effectiveness and implementation outcomes of the optimized Intensive Diabetes Prevention Program (IDPP) in District Health Centres. The main questions it aims to answer are:
* Do the implementation strategies - patient engagement system, structured training, and reminder systems - work better than usual approaches in terms of acceptability, adoption, appropriateness, feasibility, sustainability, and implementation cost?
* Do patient health outcomes - HbA1c levels, BMI, lipid profile, quality of life, perception of empowerment, and health service utilization - stay the same or get better when these improved strategies are used compared to usual approaches?