Ghosal, who had come to Colombia nearly a week ago to adapt himself and this included sparring with the local hero Miguel, virtually left the local crowd speechless with his gritty show, winning 11-8 12-10 7-11 4-11 12-10 yesterday.
He led by two games before conceding the advantage to the World number four. In the deciding fifth game also, Ghosal was down 7-10 and all seemed over. But the dramatic transformation came at that stage in a now typical Ghosal style as he reeled off five points in a row to conjure up a sensational win in 101 minutes.
"I guess it required a special match and performance to beat Miguel," he said.
On a day when things went topsy turvy for the seeded players, the other semi-final also produced an unlikely winner in qualifier Alferdo Avila of Mexico, who sent out the second seed Peter Barker of England in five games.
But then Avila had beaten the fifth seed and thereafter the third seed en-route and so the outcome seemed in keeping with his giant-killing form.
Ranked 54 in the PSA list, much below Ghosal (19), the final could have the trappings of another sensation. Not since February 2012 has Ghosal won a PSA title.