A 35-year-old man was found dead under mysterious circumstances at a guest house in Moga city today.The police said the man had checked into the guest house on October 8 and was staying there for the past three days. The deceased has been identified as Bhupinder Singh of Bhamb village of Ferozepur district. The body was discovered when the guest house staff tried to reach out to him and found him unresponsive. They looked inside his room through the window pane of the bathroom and found him lying on the bed, the police said.The manager of the guest house called the police. The police broke the door and took out the body. The body had been sent to the district hospital for a postmortem examination. The samples of viscera had also been taken. A case has been registered and further investigations are on.