Is it good to prepare previous years’ question papers for the IGNOU exams?

It would be insufficient to prepare last year's questions in order to write your answer this year.

To perform well on the exam, you must practice with at least 5 years of questions. Because there are a lot of questions in the exam. So, in order to improve your performance, try to attend to more and more questions.

One thing you should keep in mind is your writing ability. To get good grades in exams, you must have good writing skills that are clear and concise. This is an important factor in any exam, so you must work on it.