I need question paper of 12th board which is ten years old.

Dear Student, 

The official bodies of CBSE and other prominent boards provide question paper of last 3-4 years on their respective websites. Getting a question paper of ten years back will not help you much as the syllabus has changed completely since then. However, you may check many educational websites like collegedekho where you can easily find last 8-10 years question paper. For moe details on previous year question paper, you can click here.