"Looking at the performance, definitely it is one of the weaker Australia teams to have toured India in the recent past. The performance is reflecting as well," said the former India left-arm spinner on the sidelines of Salaam Bombay Cricket Academy's tournament here.
"It (Australian spin attack) is inexperienced. As a batsman when you get a hundred it's a habit, likewise as a spinner you need to pick up a five-wicket haul and that makes a huge difference. Unfortunately, Australia is lacking currently in that department," he said.
India, who won the third game at Mohali yesterday by six wickets, have taken an unassailable 3-0 lead in the four-match rubber against the Michael Clarke-led visiting side.
Kulkarni, who played three Tests and 10 ODIs, said the hosts always had an upper hand considering Australia's weak bowling attack.
"We always had the upper hand, considering Australia's weak bowling attack. If you can't get 20 wickets then you are struggling to win a Test match. In India it is even more challenging because if spinners can't get you 20 wickets then you are struggling.