Some of my friends graduated from Andhra University. According to them, the major thing required is a proper presentation. Properly presented answers are given an upper hand. So make sure you do it well.
Here are some tips on how you can improve your presentation.
Finally, it is suggested that you try making your answer sheets as neat as possible. As the evaluator has to go through numerous answer sheets, they won't be able to read everything thoroughly. So try highlighting important parts of your answers, to make them stand out. Overall, try keeping the answer sheets as neat as possible.