A 25-year-old student of Azad Institute of Engineering and Technology,Mohammad Farooq Ali,died reportedly of heart attack on Friday when a group of students pelted stones on a private hostel in Sarojini Nagar where he lived. There was no injury mark on Farooqs body and it appears he died of heart attack,said a police officer,adding that the postmortem report is awaited. Farooq came out of the hostel to see what was going on and dropped unconscious on the ground, said Additional Superintendent of Police,East,Harish Kumar.