The 34-year-old man who allegedly pushed a stranger in front of a moving Bronx subway train two months ago, killing him as his wife looked on in horror, was indicted Monday on murder and manslaughter charges, prosecutors said.

Kevin Darden was arraigned in Bronx Supreme Court on the grand jury indictment Monday and remanded without bail. He pleaded not guilty to the charges. 

Prosecutors say 61-year-old Wai Kuen Kwok was standing with his wife on the southbound D platform at the Grand Concourse and East 167th Street station Nov. 16 when Darden allegedly shoved him in front of an oncoming train.

Police say Darden and Kwok didn't know each other.

Darden's attorney didn't immediately return a message. He has previously asked that people remember suspects are presumed innocent.

If convicted, Darden faces up to 25 years in prison.