Hello aspirant,

To download question papers of 12th standard CHSC board,

• Visit their official website sikhyajoyti.odisha.gov.in
• Search for question papers tab
• In that search for CHSC board
• And then you can view or download the papers

Or you can visit careers360 website which also offeres question papers,

https://school.careers360.com/boards/chse-odisha/odisha-chse-questions-paper

Best of luck for your preparation.