Aditi R. Avhad was headed to Columbia, Mo., Thursday when the bus slammed into a highway overpass support pillar near Litchfield, about 55 miles northeast of St. Louis.
The school said Friday that Avhad was a graduate student in health administration from Mumbai.
Illinois State Trooper Brad Lemarr says he doesn't know where Avhad was seated on the bus, which was traveling between Chicago and Kansas City.
Thirty-eight people were sent to hospitals with injuries. Officials say some patients were still hospitalized Friday but that no one had life-threatening injuries.