Dear Sir,, Educate the people with perfect Diet pattern and to avoid Glucose and Carbohydrate contributing food.
At the start best is periodic urine test for urine sugar and if that control is achieved then can go for blood test. As strips for urine test is much cheaper for rural people and they can be educated well with Good Diet Control and more Physical labor until the Urine gets cleared of Sugar.
You can simply check HbA1c level....it is a simple test and also has low cost.....it is a simple and easy test to see diabetic control among rural population....