A Queens man sought $1 million in a 2020 lawsuit claiming he tripped on an uneven metal plate on a Bed-Stuy sidewalk and busted his hand, shoulder and lower lip.

But city attorneys say the real cause of his injuries was a fight on Thanksgiving.

The alleged fraud perpetrated by Dwight Marshall, 57, was one of 15 lawsuits filed over the last decade by the Lower Manhattan personal injury law firm, Asher & Associates. Now, the city’s law department is pushing back. City lawyers filed a landmark federal lawsuit earlier this month claiming Asher routinely files bogus slip-and-fall cases as part of a concerted effort to cheat taxpayers out of millions of dollars.