Opening batsman Prithvi Shaw, who had missed the first two Tests against Australia with injury, has now been ruled out of the rest of the series.
Mayank Agarwal has been called up as his replacement, while seam-bowling all-rounder Hardik Pandya has also been added to the squad.
Shaw sustained his injury while fielding during a tour game against a Cricket Australia XI. He hurt his ankle attempting to take a boundary catch. It had been hoped he would regain fitness for the latter stages of the series, but it has now been confirmed that he will miss the duration.
The news will come as a blow to India, with the 19-year-old Shaw having impressed on his early forays into the Test arena; his first two Test innings brought him 204 runs, including a 99-ball century on debut. India's opening pair, KL Rahul and Murali Vijay, have struggled in his absence, with neither having hit a half-century in their combined eight innings in the first Two Tests.
Shaw's replacement, Agarwal, is yet to make his Test debut, but is experienced at the domestic level. He averages 50.30 in first-class cricket, with a high score of 304 not out. He also struck a half-century in his most recent first-class innings, for Karnataka in the Ranji Trophy.
Pandya had been sidelined with a back injury sustained during the Asia Cup. He proved his fitness and form in the most recent Ranji Trophy round, claiming first-innings figures of 5/81 and scoring 73 for Baroda against Mumbai.
The second Test is ongoing, with India requiring 175 runs with five wickets in hand heading into the final day at Perth.
Personalise your homepage with an ICC account
News, fixtures and updates tailored to your favourite team. Never miss a moment!