Ranchi: A college principal was killed by a student in Jharkhand’s Gumla district on Wednesday, police said. Shashi Bhushan Prasad, the principal of the Kartik Oraon College, was killed with a sharp-edged weapon in his office. The student attacked Mr Prasad on his neck. Principal send to the hospital but doctor declared him dead. Police reached the spot. The student has been arrested.