Islamabad- A 21 year old youngster drowned in Rawal Lake the other day in the jurisdiction of Secretariat Police Station. According to police 21 year old Mohammad Gufran drowned in Rawal Lake while swimming. The police has taken the dead body into custody and sent it to hospital for post-mortem. Mohammad Gufran belongs o Muzzafarabad and had come to Islamabad as a labourer.