Before going to interview you should prepare the answers of the question that most likely asked in interview. Most of the time interviewer ask you Tell me about yourself though it is very common question however it is important question that interviewer check your communication skill. The answer should be brief and precise.You have to tell about your name,where do you live, little bit about your family and your work experiences and tell them your abilities such as adaptability,quick learner , ability to deal with different situation. In addition, you should mention your achievements it can be anything it doesn't need to have award. If you are fresher you can tell them if you were leader of group project or if you appreciated for your work. This answer should be in two to three sentences. So,you can practice the answer night before your interview.