How to Pass NIOS on Demand Exam 2021 If you are looking for a way to give exams in which you can do it according to your demands, then the NIOS On-Demand Exams 2021 are the best option for you. In these exams, the student can choose their exam date as per their convenience. One can find the dates for these exams online on the website of the National Institute of Open Schooling (NIOS). There are many reasons why one can choose this exam and some of them are: • Can appear for exams on the preferred date • Give exam for the failed subject only • Credit transfer of the subject • Result comes out after 45 days of the exam While preparing this exam, it is important for the students to learn about how to prep up. Here are some tips: • One can get the guide books with many questions that can come in the exam. They can be purchased online from nearby booksellers. • You can also go through the previous year's question papers by downloading them from the website. • NIOS also provides textbook material via courier and you can also get the same online and start with your preparation today.