An economics scholar from the Punjabi University, Patiala, Singh collected three shoot-off wins on the day starting with his triumphs in the opening rounds.
In the bronze playoff, the 31-year-old was leading 5-3 before the Kroean clinched the fifth set shooting a perfect 10 to force a shoot-off where the Indian responded in style shooting a perfect 10 against Kim's 8 for a 6-5 (26-24, 27-29, 28-25, 25-25, 26-27) (10-8) win.
In the semifinals, Singh lost to world number 10 Kevin Mather of the USA 6-4 in an intense five-setter (25-28, 24-24, 25-25, 25-24, 24-26).
Singh, who hails from a small village Guhla Cheeka near Kaithal in Haryana, was stretched to the fullest in the first two rounds, but he showed tremendous resilience to overcome his fancied opponents via shoot-offs.
In the first round of 32, Singh squandered a 4-0 lead against Stefano Travisani after shooting a 7 in the third set as his Italian rival made it 5-5 (27-24, 26-22, 26-27, 25-25, 25-27) to force a shoot-off.
Singh clinched the issue -- 6-5 (10-7) -- in style, shooting a perfect 10 in the tie-breaker as his rival managed just a 7.
In the last-16, Singh pipped former world number one Bato Tsydendorzhiev of Russia, once again by the thinnest of margins 6-5 (8-7).
Singh effected a spectacular turnaround from 0-4 down to bring the match on an even keel 5-5 (26-28, 23-26, 29-26, 23-21, 28-28) and force a shoot-off where he edged out his Russian opponent 8-7.
In the quarters, Singh swept aside 49-year-old three-time Paralympian Maik Szarszewski of Germany 6-2 (25-21, 28-23, 25-28, 26-23) dropping just one set.
Hailing from a middle-class farming family, Singh had dengue when he was just one-and-half years old and a local doctor administered him an injection that had an adverse effect and his legs stopped working properly.
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