Mishra was a meritorious student. There was no record that he had previously suffered any cardiac arrest, Kasalkar said.The relatives of the deceased have been contacted and efforts are on to collect information about Mishra from the students living in the hostel, he said.Meanwhile, circle officer of Kalyanpur police station, Shailendra Lal said the body was sent for postmortem as the death has taken place under mysterious circumstances."The cause of the death will be known once we get the postmortem report," he said, adding a search was being carried out in the hostel room where Mishra used to stay.