Gambhir said the performance of openers is crucial for success Down Under."It is got to be a challenge (in Australia). Plus they have the bowling attack to hurt any opposition. It will not be a cakewalk. If you go to Australia and playing against Mitchell Stark and Pat Cummins, you have to be ready," he added. There were not enough opening partnerships. They have really exciting players like Shaun Marsh or Aaron Finch. He has started off his test career on a very good note but there will be far bigger and far difficult challenges waiting for him," said Gambhir. If you want to succeed overseas, you need a good platform," said Gambhir. We talk about the batting because they don’t have Smith and Warner but they still have formidable batting in their backyard. "England manage to win in Australia because they went one month early. He has his individuality and Sehwag has his own. They played three or four warm-up matches.. But former India opener Gautam Gambhir says one needs to think twice before comparing the young Mumbai batsman with Sehwag."He has just started his career and there is a long way to go.Gambhir said Prithvi would face sterner test in future. Playing Australia in Australia will be a threat," he added.India will travel to Australia end of this year for four Tests, three ODIs and as many T20s. If you are going overseas, your bowlers should have bowled 80 or 100 overs so your body gets used to it."It is important for openers to succeed China Industrial gate opener Factory in Australia because that is the department where India struggled during the England tour. I have never believed in comparisons. "Prithvi’s very talented and that’s why he is there in the team. They have the best off-spinner in the world right now. He has just played one match and Sehwag has played around 100 Tests," said Gambhir.Mumbai: Prithvi Shaw, who slammed a stroke-filled hundred on his Test debut, has drawn comparisons with the likes of Sachin Tendulkar and Virender Sehwag.The veteran left-hander said India should reach Australia early in order to get acclimatise to the conditions