Hi, to download the question papers of CBSE Class 12th for all subjects click on the link https://school.careers360.com/articles/cbse-class-12th-question-papers

Going through CBSE Class 12 Sample Papers will also help you for better preparation for exam as it makes one know about the type of question papers and difficulty level of exam. Solve and practice question papers as many as you can.

Hello himanshu,
Yeah 10 years papers will be definitely helpful for classs 12 exam ,and by the way due to changes in academic syllabus ,could you please mention the year of your study so that i can provide you the better reference of last year question papers and you can prepare for the exam
Goodluck,
Thank you