Shetty provided Falcons a flying start with an upset win over Quadri Aruna of Yoddhas and later followed it up by partnering Lee Ho Ching for a 3-0 win over Abhishek Yadav and Doo Hoi Kem in the mixed doubles.
Falcons had taken a commanding 9-0 lead after Wu Yang had blanked Manika Batra by three games to nil.
In the opening tie, Shetty, the world No. 201 stunned Quadri, ranked 29, with a range of attacking shots and won the tie 11-6. He kept the pressure on his Nigerian rival and won a close second game 11-10.
It was Shetty's second win over a foreign player in the tournament having beaten Portugal's Tiago Apolonia earlier.
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In the second match, Wu Yang quelled the challenge of a determined Manika Batra 11-5, 11-10, 11-8 to put Falcons 6-0 ahead.
Batra fought hard and was on the verge of capturing the second game but couldn't close it out. Yang used her experience to put it across the Indian, who made errors at crucial junctures.
In the fourth rubber, Swedish veteran Par Gerell bounced back after losing the opening game to get the better of Tomislav Pucar 9-11, 11-5, 11-9 to extend Falcons' lead to 11 -1.
Ching won her second match of the night, by hammering Polina Mihailova 11-3, 11-6, 11-4 to dash the Yoddhas' hopes.