Hi Ritusri,

Yes, you can re-appear for your 10+2 examination if you are not satisfied with your score.

This re-examination will be termed as improvement exam which means you have cleared the exam but want to improve further, So what you have to do is to contact your examination conducting authority of your school he/she will provide you with all the forms and will inform you about the documents required.

Then you'll be provided with a date which can be a month or two after your main examination results got announced and it can also extend till next year and in that case you have to appear for the examination when your juniors will have the exam.

The dates and process can go through some alterations due to the pandemic , you'll get the best guidance from the competent authority of your higher secondary school.

Hope this helps,

All the best!