Nagpur University — want to get b.com 2nd year mark list that I lost

I have 1st year & final year of b.com mark sheets with me but lost my 2nd year mark sheet, & i need it for canada pr but got to know from nagpur university that i need my 2nd year exam roll no. For application.

Now when i don't have my mark sheet with me and i cleared b.com in 2008, from where i will find my roll no. For 2nd year, please help me...