A 23 year old man was found roaming aimlessly near New Delhi Railway Station. When the police enquired about his whereabouts he appeared confused and was not able to tell details about his name and address. He was not able to give any information about how he reached the railway station and could not recall anything about his past. His belongings included an AADHAR CARD, where the address was of srinagar, jammu & kashmir. When his family was contacted, they repoed that his father had died yesterday and since than he went missing. What is the likely diagnosis?