The father of Souvik Pal, the Manchester Metropolitan student missing since the early hours of New Years' Day, says he will stay in Britain until his son is found.
Anyone with information is asked to call police on 0161 856 4223 or call the independent charity Crimestoppers on 0800 555 111.
Further tests will be carried out into the death of missing student Souvik Pal. A post-mortem examination carried out was inconclusive.
The father of missing student Souvik Pal will appeal for information about his missing son, one week after his disappearance.