England captain Alastair Cook described the forthcoming four-Test series against India as a huge challenge as no team from his country has won a Test series here for three decades. "It's a huge challenge as history suggests. It is so hard for an English side to win in the sub-continent. We are just desperate to use the conditions in these three (warm-up) games and change things around," said the left-handed opener at his first post-arrival media conference here. "Clearly the history shows how hard it is (to win in India). It's been 30 years (since England won a Test series in India). That's the sort of challenge we have ahead of us.