Ganguly believes that despite winning the first Test in Adelaide, Virat Kohli's India will have to fight hard to win their maiden series in Australia.
India won their first Test on Australian soil in a decade on Monday, bowling out the home side in a nail-biting finale to clinch the first Test by 31 runs.
India, who claimed the opening Test by 31 runs, were 86 for 5 in the first innings before Cheteshwar Pujara's gritty 123 helped the visitors post 250.
Tendulkar said India's thrilling 31-run win in Adelaide reminded him of the historic Test in 2003 when Dravid and Agarkar scripted a famous victory.
Kohli Monday warned Australia that there will be no let up in intensity and the visitors will go for the kill in the remaining three Tests.
Pujara, just maybe, has kept India alive and breathing on a day, when their series’ aspirations would have been dealt a knockout blow.
Only three players - Virat Kohli, Murali Vijay and Ajinkya Rahane - made a substantial impact four years ago.
Bowling in the 58th over of the innings to the well-set Peter Handscomb, Jadeja bowled the mystery, rather the weird delivery.