Former India captain <a href="https://www.cricketcountry.com/players/Sourav-Ganguly">Sourav Ganguly</a> believes that despite <a href="https://www.cricketcountry.com/news/india-vs-australia-2018-jasprit-bumrah-bowls-india-to-historic-test-win-over-australia-in-adelaide-776228">winning</a> the first Test in Adelaide, Virat Kohli's India will have to fight hard to win their maiden series in Australia. India took a 1-0 lead against Australia on their soil for the first time in 70 years after clinching a 31-run win in the aopening Test. <p></p> <p></p>Australia's lower order led by Nathan Lyon had sniffed victory before being eventually bowled out for 291 on the final day. Congratulating Team India, Ganguly on Monday said: "It's a great win. This will be a hard-fought and highly competitive series. All the matches will be result-oriented." <p></p> <p></p>India's best finish in Australia has been a 1-1 draw under Ganguly in 2003-04. The second Test of the four-match Test series will begin at Perth from December 14.