RRB Ahmedabad 03/2012 Notification

Can I check result of any exam of RRB Ahmedabad by searching notification number? I had appeared in an Exam conducted before 1 year. The result of that exam is declared today. So I want to check my result, but I don’t have any Roll number. I only have Notification number (03/2012). Give me contact number of RRB Ahmedabad where I can get right proceudre.