Glenn McGrath feels that playing a Test series in India, scheduled to be held next year, is going to be the ultimate challenge for Pat Cummins & Co.
McGrath was also appreciative of Australia's recent performances in Test trips to Pakistan and Sri Lanka, saying that the side has started to understand sub-continental conditions.
Australia will tour India as part of the Border-Gavaskar Trophy tentatively in February-March 2023, with an aim to win the series in a country where they have never won after the 2-1 triumph in October-November 2004.
The side won the three-match Test series in Pakistan 1-0 in March and were held to a 1-1 draw in a two-match Test series in Sri Lanka in July. "Obviously the single biggest challenge for Australia is coming to India, performing well and winning the series.