A 38-year-old man from rural Maharashtra presents with a 2-year history of hypopigmented macules over his trunk and arms. On examination, he has 5 well-demarcated lesions with diminished sensation to light touch and pinprick. Slit-skin smear shows 4+ acid-fast bacilli. Nerve palpation reveals thickened ulnar and posterior tibial nerves. Lepromin test is negative. What is the most appropriate MDT regimen for this patient?