India`s come-from-behind series win over Australia was a "great advert" for Test cricket and his side will have to be at their "absolute best" to challenge them at home, said England captain Joe Root. An injury-hit India, who were also missing some star players like skipper Virat Kohli, registered a three-wicket win in the series-deciding fourth Test to clinch the four-match series 2-1, a month after facing the ignominy of being bowled out for their lowest-ever score of 36 at Adelaide.

"It was a fantastic series to watch from start to finish with some brilliant cricket played," Root told reporters on the eve of England`s second Test against Sri Lanka here. "India showed great fight, character and resilience and depth in their squad for guys to come in and perform the way they did.