Unidentified miscreants assaulted an 18-year-old ISc student to death in Daltonganj. The deceased was identified as Koonal Singh of village Rampur. He was living in a locality Hamidganj in Daltonganj in pursuit of his studies. Police sources said that on Thursday night Singh had a scuffle with some of his acquaintances and his body was found on Koyal river bank on Friday. His body bore the marks of blows of lathi. DSP Prabhat Ranjan Barwar confirmed the murder of the student.