Fermi Estimation Technique. They will give you a random scenario and ask you to gauge a number that you might never have thought of. For example how many street lights are there in Tokyo?

First, after apply the position by mail.You will receive a on-line test like aptitude test (numerical , verbal),if you pass the on-line test. You will invited to office do a interview with HR. the process including self introduction,behavioral interview question with your CV, and then do a small case interview( marketing size question).