A 52-year-old man with a 10-year history of hypertension and type 2 diabetes presents to a primary health centre in rural Maharashtra. His BP is 148/92 mmHg and fasting blood sugar is 156 mg/dL. He has no symptoms of angina or dyspnea. On examination, he has no signs of end-organ damage. As per NPCDCS guidelines, what is the most appropriate next step in management?