Hello Aspirant,

Yes you can do so, but why to repeat the entire year instead what you can do is either you can appear for NIOS or any other recognized open board and they provide the facility for On Demand Examinations and for the same you can appear either in the subject in which you have failed or for some other subjects in which you want improvement, from this you can save your year but make sure to check the applicable dates on the respective board's official website.

I hope this information helps you.

Good Luck!!