Hello aspirant,
As per your question i do understand your situation.
I wish you mentioned the college or universitie's name you want question paper of.
For DU you can go on their official website and from their you can have the question.
Many a times question papers of previous years is not publicaly available.
In this case then you can talk to your senior or an existing authority or sexisting student in the institution and see if you can get question paper or atleast question.
All the best.