Immigration officials confirmed the players, three medium pace bowlers, a batsman and a wicket-keeper, arrived in Adelaide on March 25. They each had $ 3,000 in traveller's cheques.
But the academy's head coach Wayne Phillips said when he went to pick the players up from the airport they could not be found and have not been seen since.
Phillips could not say what had become of the players. "That's not up to me to comment on, we have passed it over to the Department of Immigration and the Department of Foreign Affairs," he said.
"We're obviously concerned about their safety, so it was appropriate to go to those departments." The cricketers were sent to the academy by India's Karavali cricket clinic, based in Karnataka in India's southwest, as part of the academy's overseas training programme.
Phillips said he contacted the clinic, but they had not heard from the players.
An immigration official said they could be deported when found. "If they've just gone underground and gone to do something else it could well have contravened the conditions of their visa and that could well lead to cancellation," a spokesman for Immigration Minister Philip Ruddock said.
More than 120 overseas cricketers have had stints at the Australian academy since 1996 when the overseas player programme started.