A 19-year-old National Defence Academy (NDA) cadet Nitesh Gaur collapsed and died during a routine cross-country run in Pune, NDA officials said on Saturday.
The incident took place on Thursday but the post-mortem report of Gaur is awaited, a spokesman of the NDA said.
A court of inquiry has been set up to probe the incident described as unusual in the history of the 60-year-old premiere defence training institute, the spokesman added.
Gaur, a second term cadet, was one of the 70 others participating in the practice run. He was shifted to military hospital immediately after collapse but all efforts to revive him failed, he said.
Police have registered a case of accidental death in the matter. The NDA is situated at Khadakwasla, around 20 km from Pune.