Twenty-nine students of a residential high school for girls at Antarba in Odisha’s Gajapati district left their hostel on Saturday night and are missing since.Despite efforts of the school authorities as well as the administration, the girls had not been traced till Sunday evening. They have not even returned to their homes. Most of the girls are from Class IX. It is suspected that they escaped from the hostel to complain to the District Collector about the state of affairs in the hostel.Gajapati District Welfare Officer Santosh Kumar Rath is monitoring the search operation. According to Mr. Rath, the girls have left behind a handwritten letter mentioning some reasons for leaving the hostel.Speaking to newsmen, school headmaster Manoj Rath accepted that the girls had earlier expressed their resentment over some issue with their teachers. As per the headmaster, the issue had been resolved. He felt the same reason may have prompted them to leave the hostel.