Ajinkya Rahane's century at the Melbourne Cricket Ground (MCG) in the 2020-21 Border-Gavaskar Trophy series is highlighted as a pivotal moment in India's remarkable comeback win against Australia. Despite facing significant challenges, including a historic low score and numerous injuries to key players, India secured a 2-1 series victory. This achievement, particularly the win at the Gabba, is noted as exceptionally difficult given Australia's strong home record.