A 21-year-old Brooklyn man was arrested Wednesday in a subway-station mugging of a woman after police released a video of the violent attack, the NYPD said.

Aidan Folan, who lives in Bay Ridge, was charged with robbery and assault in the March 9 mugging, which was caught on two surveillance cameras in the 18th Avenue F train subway station at McDonald Avenue, police said.

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In the surveillance video released by police, authorities said Folan is seen punching, kicking and slamming the unidentified 56-year-old woman against walls and the floor, before emptying her purse and chasing her along the subway platform.

She was left with a broken arm and bruises on her face.

The suspect wore a distinctive fraternity hoodie with the Greek symbols for Alpha Phi Delta.