Indian wrestler Yogeshwar Dutt

New Delhi: Indian wrestler Yogeshwar Dutt's chances of the London Olympics medal being upgraded from bronze to silver is all but over but Wrestling Federation of India (WFI) on Wednesday claimed it was unaware of the development. With the International Olympic Committee deciding to drop the investigation against the deceased Russian wrestler Besik Kudukov, who won the silver medal in the men's freestyle 60kg category at the 2012 Games, bronze medallist Yogeshwar's hopes of getting his medal upgraded has evaporated.