Hello Aspirant,

JSOS stands for Jharkhand State Open School. It is a valid and legal board authorised by state government of Jharkhand.

It's certificates are also valid across the nation. If you complete your education from this board than there will be no harm to your marksheets, certificates and other eligible requisites.

For more information about JSOS you can visit to it's official website as given - https://www.jsos.ac.in/

I hope this information helps you.

Good Luck!!