Resume should clearly depict your skills suitable for the job , like here game testing so you should know a lot of information about the games. Then in the first round there was an face to face interview with the HR. After clearing that there is an article writing on one of the various topic provided to check your grammar. then there is an round with an HR of the Gaming department who would ask questions about the various games you have played , and how well you remember the characters and stuffs about the game. Then in the last round you will be given 30 minutes to play a game then few MCQ's will be given on that game.