Mubashra Uddin, 20, pleaded guilty to involuntary manslaughter on July 6. View Full Caption DNAinfo; Cook County Sheriff's Office

UPTOWN — An Uptown mom who dropped her newborn from an eighth-story window after hiding her pregnancy from her parents has been sentenced to four years of probation.

Mubashra Uddin, 20, pleaded guilty to involuntary manslaughter in front of Cook County Judge Carol M. Howard on July 6, after prosecutors dropped the original murder charges.

Around 11:20 p.m. on Nov. 11, 2015, Uddin gave birth to a 7-pound, 11-ounce baby girl while her younger sister slept in the family's apartment in the 800 block of West Eastwood Avenue, according to authorities.

When Uddin heard her mother approach the room, she opened a window and dropped the child eight stories.

Uddin had hidden the pregnancy from her parents, who didn't approve of Uddin's boyfriend, prosecutors said.

The child initially survived the fall, but suffered complex skull fractures, a fractured spine, a broken shoulder and forearm, fractured ribs, a lacerated liver, a lacerated aorta, blood in her abdomen and multiple bruises.

A passerby who spotted the baby wrapped her in his shirt, retrieved two baby blankets from his nearby home and waited for an ambulance, said Assistant State's Attorney Pat Turnock at the bond hearing.

"Baby Jane Uddin," as she's referred to in court documents, died just before 1 a.m. Nov. 12 at a nearby hospital.

Police found blood on Uddin's sheets and window, as well as the pair of scissors she allegedly used to cut the umbilical cord.

As part of the probation, Uddin will undergo a mental health evaluation and treatment and is subject to drug testing 7 days a week. She will also have a curfew from 11:30 p.m. to 7 a.m. for the first year and can't leave the state without permission.