A dejected Samresh Jung says he will not be able to repeat his Melbourne Commonwealth Games' astonishing shooting feat at home in October as he is under-prepared in the absence of a regular coach.

Jung had won five gold, one silver and a bronze medal at the 2006 Melbourne Games and was adjudged "Best Athlete of the 18th Commonwealth Games". Jung, who was in contention in eight events in the previous edition, said he will not be able to compete in more than seven events this year due to lack of preparations.