Australia posted 122/1 in their first innings, trailing India by 500 runs at lunch on the third day of the fourth cricket Test here on Saturday.
At the break, Marcus Harris was batting on a well-made 77, while Marnus Labuschagne was on 18 at the other end.
Resuming the day at the overnight score of 24/0, Australia lost their first wicket when Usman Khwaja was dismissed by Kuldeep Yadav.
Khwaja, who was batting slowly and steadily, scored 27 runs off 71 balls with three hits to the fence.
He gave good support to fellow opener Harris who was in good form at the other end.
The two of them put together an opening partnership of 72 runs to give the Australian innings a steady start.
Brief scores:
Australia (first innings): 122/1 (Marcus Harris 77 batting; Kuldeep Yadav 1/40) vs India (first innings): 622/7 (declared).