NIOS conducts On Demand Exam for students who do not want to wait a whole year for results. With on demand exam you can get your result within few months of giving the exams. On Demand Exam is conducted every month throughout the year. You can apply in as many subjects you want and there is a facility to transfer your previous year marks to NIOS if a student have good marks in other subjects except a few, click here for further details.
This website covers the details of NIOS On Demand Examination only, if you want to know about NIOS regular exam the you can post your query in the comments.
These are links to other article posts on more information about NIOS Examination. The latest post is at the end of the list
Update : NIOS On Demand Examination
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