The deceased identified as J R Philemon, was found dead in his room in the Brahmaputra Hostel yesterday.
The autopsy was conducted today and prima facie, it looks that he died due to overconsumption of liquor, said a senior police officer.
There were no external injury marks on his body, he added.
"Philemon was addicted to alcohol. It looks as if he collapsed after consuming alcohol and died," said the officer.
During the inspection of his room by the crime team, alcohol bottles and some medicines were recovered, police said.
Philemon was pursuing his PhD on the subject of West Asia and he hadn't been seen by other students for a few days.
When a foul smell started emanating from the room, the student in the neighbouring room called other students and security and forcefully opened door. He was found dead in the room.
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