Towards the end of the story, Hari Singh smiled in his most appealing way because he felt relieved and grateful. Anil had discovered the theft — the fifty-rupee note was still wet from the rain, proving he knew — yet he said nothing and even offered Hari regular pay. Hari realised that Anil had forgiven him silently. The smile also reflected Hari's inner transformation; he had returned the money and chosen honesty and education over theft. The smile came naturally, without effort, unlike the calculated, manipulative smile he had used earlier to win Anil's trust.
Source: "A Thief's Story" (The Theft and Its Aftermath), Chapter 2
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