"Australia host Pakistan in November, so the time available for them is less," BCCI secretary S K Nair was quoted as saying.
Australia visit India after the Champions Trophy in England in September but Cricket Australia (CA) has expressed its wish to play only the Test series citing heavy burden on the players.
"It is true that we played One-dayers when we were in Australia last, and usually these things happen on a reciprocal basis, but sometimes you have to make adjustments," Nair said.
The tri-series is planned to be held in October-November with South Africa as one of the visitors. The third team to take the place of Australia remains to be decided though.
Compounding the confusion surrounding the itinerary was South Africa's eagerness to play Test matches during their visit.
"We are still in negotiations with the United Cricket Board of South Africa (UCBSA) and the itinerary will be finalised within the next few days," he said.
"Even the number of days South Africa will come here for is not yet decided. At the moment everything is tentative. We have suggested that South Africa play Test matches also. We are keen to also play Tests against South Africa. We have requested them to play two Test matches, but we have to see whether it can be fitted in," Nair added.