India has lost the ODI series to South Africa, England, and Australia since March but Mandhana feels the team has got the best possible preparation for the World Cup. India will also play New Zealand before the World Cup. ''The last year has been really important for us and especially playing in England and Australia. We are also playing New Zealand, so playing the top three-four teams in a space of seven-eight months, that is the best preparation for World Cup. We have learned a lot in the last two series.'' Among all the three series, the one in Australia was the most closely fought with India losing 1-2. ''The Australia series was a good one though results didn't go our way. Almost all the matches were decided in the last over and those were matches we could have won or lost. ''Though we lost the three series, they served as good preparation for us to go into the World Cup. We were able to score 250 plus in two out of three games. Will take all the positives from that. I also learned a lot in Australia,'' she added.