If you are fresher, you need to mention your educational background with percentage, and also mention your technical skills, achievements. if you have much time you can mention your family background also.
If you are an experienced person, you can mention your previous company and your projects names and projects description and also mention your role and work.
I just have to be confident with all your skills and be motivated. Don’t panic answering any question and if you don’t know the answer say directly that you really don’t know this, it somehow makes a positive impact on the interviewer.
Do your homework well learn everything about company their employee selection criteria and repeat your knowledge and be confident and you will get selected .