Hello aspirant!
Hope you are doing well!

JSOS stands for Jharkhand State of Open School, is entirely an authentic board. It is registered under the Government of Jharkhand. It does not matter what other say. You must always refer to authentic information and not what media is saying or some other person is saying

Please visit their official website at: https://www.jsos.ac.in/cobse.aspx for their COBSE accreditations.