The Indian Super League side thrashed their opponents 11-1 on Thursday, with Gyan being the star of the show.
The Ghana striker scored his first goal in the 15th minute, added his second from a penalty in the 26th minute and then completed his hat-trick in the 43rd minute.
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Just two minutes later, the 34-year-old added his fourth goal, before being substituted at the break.
Gyan joined NorthEast United on a free transfer in September 2019 after leaving Turkish club Kayserispor in June.
He has since made a flying start at the club, netting two goals in his first three league games for the Indian side.