An accused heartless granny-mugger pleaded not guilty today to charges he shoved an 87-year-old woman to the pavement in East Harlem last month and ripped a gold crucifix from her neck.

“I didn’t rob no one,” cops said career con Arnel Munoz, 35, told them after a tipster fingered him, and feisty victim Margarita Fuentes picked him out of a lineup.

Munoz pleaded not guilty to the mugging today, and remains held without bail. He faces a mandatory minimum prison sentence of six years if convicted.