Hello there!

Greetings!

You can easily download previous year question papers of cbse social science and other subjects by visiting the official page of cbse for which link is provided below :-

http://cbse.nic.in/newsite/examination.html

It is good that you want to practice previous year question papers as  lsolving theprevious years question papers will give you ideas ofquestions framing and its pattern. It will allow you to understand what is needed to be covered while preparing the subjects for examination.

Thankyou