Delhi University — wrong father's name, gender, division

Address:

110021

I have completed bcom (H) from motilal nehru college, du in 2013 and get my degree certificate in 2015. My father's name, my gender (Its written d/o while am a son) and my grade/division all were incorrectly written. I write an application for correction and submit through my college but receive the same saying that i need to enclose notification of changing my name. Now am stuck, don't know what to do.