IGNOU assignments are the most important part of your studies.
It is recommended that you use double-sided ruled thick paper for your assignments. Leave some space on both sides of the paper so that your writing is not hidden when you stick it in a file. It is best to begin with question 1 and work your way through the questions in order. Avoid putting too much space between two answers. It is also advisable to properly write the questions and their answers. You must keep a separate file for each subject.
It is beneficial to review your classmates' assignments. It gives you a clear picture and a better idea. The Viva-Person usually asks the question based on the answer you wrote, so make sure you have revised all of your answers before the viva session.