Hii aspirant, I'm very sorry to hear this. See now since you don't know your roll no you cannot see it without it. 

So I'll tell you one way which you can get your roll number, see you must have taken out print out from your PDF, or downloaded it from the site,so you must have it in your phone files. 

Try locating it, if you don't kindly revert I'll be very happy to help