Hello, For JKBOSE board the year of declaration will be the year of passing of the candidate. Since until you have been evaluated by the board whether you have acquired the sufficient knowledge from your schooling will determine whether you have that educational qualification or not.

Hope this helps.

Greetings,

If you studied and appeared for your 12th in 2019 then you'd be considered to have completed your 12th in 2019 itself. Please provide more information (which board? what was the issue behind such a delay?) with regards to your query so that I may try to be of some more help.

Good luck