Dear Benjamir,
I am a fresher too. I gathered a few pieces of information from guest lectures and workshops. So here it goes,
"TELL ME ABOUT YOURSELF" - As simple as the question may seem, it could be one of the trickiest questions. The HRs judge you by the relevance of your answers, so it is always good to stick to your professional profile. Although a few lines about your family and background are no harm.
For example: Hi, I am Mr./Ms. QWERTY, I hail from a farming family (or your family details). My native place is "POLLACHI," etc. Mention your siblings' names if you want. Avoid elaborating (e.g., My first brother is a Veterinary doctor, my sister is married to a farmer in the next village... etc., should be avoided).
The next step should be your educational details. Again, a few lines would suffice. In case you have received any special rewards or medals in your academics, mention them. For example, I passed my UG-B.E with Distinction, etc.
The third step could be your SWOT (strengths, weaknesses stuff)... I guess most of us here know how to define them. But avoid mentioning personal weaknesses like smoking or drinking habits as it does not convey a good message to HR. Let them be something that substantiates your strengths. For example, if you had mentioned that you are a FRIENDLY PERSON as a strength, try putting that as Being Friendly. In all situations, it is not possible, so I must learn to cope with such situations - this could be your weakness, also known as an Area of improvement.
The fourth and last step should be your career-related information in case you have work experience. Your current job description and a few achievements and other related things. In the case of a fresher, show them how and why you are interested in working with that particular organization. Show your willingness.
Apart from step 3, all others are in your resume itself. So, it's just testing your communication skills and how boldly you talk, giving full justice to relevant matters.
This is simply what I have gathered from some workshops I have attended. It could be around 90% correct.
I also welcome some senior HRs to correct me if I am wrong and suggest the right thing as well.
Hope this is useful.
Cheers,
SHARRANYA V. GANESH