According to Ahmedabad Police Commissioner GS Malik, the incident occurred on Saturday night when some 20-25 people entered a hostel premises of Gujarat University in Ahmedabad "and objected to the international students offering namaz there, asking them to do so in a mosque. They argued over the issue, assaulted them and hurled stones". Two students -- one from Sri Lanka and another from Tajikistan -- were hospitalised, the police said.