The Proteas outclassed the defending champions by 76 runs, posting 187/7 before dismissing India for 111. Miller scored 63 off 35, while Dewald Brevis added 45 off 29.
Miller said the key was clarity of thought and disciplined execution, targeting Chakravarthy's bad balls and sticking to fundamentals. He emphasised staying in his lane and trusting the line on a low-turn surface.