Gritton netted a well-rounded, 27-minute hat-trick at Field Mill, combining with Michael Boulding and defender Alex John Baptiste to complete the 5-0 rout over the league's bottom side.
The 28-year old signed, initially on loan, for the Stags until the end of the season, with his early showings helping the club ease its relegation woes.
With the striker out of contract in the summer, though, many believe Stags manager Bill Dearden, who witnessed Monday's reserve victory over Blackburn Rovers on Monday, will swoop for the out-of-favour Imps man.
The striker has netted five times in as many starts since joining