The fourth and final Cricket Test between India and Australia begins in Sydney tomorrow. The Indian team will be led by their newly appointed Captain Virat Kohli, following the announcement of retirement from Test Cricket by M.S. Dhoni. All India Radio will broadcast live commentary, alternately in Hindi and English, on all the five days of the match. The commentary on the opening day's play tomorrow can be heard from 4.30 a.m. onwards. On the subsequent four days, the commentary will begin from 4.50 a.m.The hosts have already clinched the series with an unassailable Two-Nil lead. The Boxing Day Test at Melbourne ended in a draw.