Randhawa, who was leading after the first two rounds, blew away his chances of winning Asia's richest prize and finished with a total of seven-under 281, seven shots behind eventual winner Yang Yong-Eun of South Korea, who beat world number one Tiger Woods by two strokes.
The Indian got off to a poor start as he dropped a shot on the very first hole but made up for the lapse by hitting a birdie on the third. Randhawa then lost his way and a dropped shot on the fourth was followed by a double bogey on the sixth.
Three-over at the halfway mark, the Indian continued to struggle and stumbled to a bogey on the 13th before hitting a last hole birdie to end the otherwise disappointing day on a bright note.
Among the other Indians in the fray, Jeev Milkha Singh dropped to tied 17th after an eventful one-over 73, which took his tally to five-under 283. The Asian Tour UBS Order of Merit leader played out a near perfect front nine studded with three birdies but was undone by a rather ordinary back nine in which he dropped three shots against a lone birdie.
The talented Shiv Kapur's (72) performance was also marred by a poor back nine as he finished tied 18th with a total of four-under 284, three shot ahead of Gaurav Ghei (74), who finished tied 26th.
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