Taking suo motu cognizance of a media report about the incident, the rights panel has issued notices seeking a report within four weeks in this connection from Ghaziabad Senior Superintendent of police, SSP Government Railway Police (GRP), Ghaziabad, an NHRC statement said on Saturday.
According to the media report, the incident took place on May 13.
Link Road police reached the spot after it received information about the incident.
The woman was rushed to a local hospital from where she was referred to the GTB Hospital in Delhi, where she was declared dead.
Her baby is reported to be critical.