One of my brother’s friends also faced a similar issue. He was a student of CSE and wrote exams more than 3 times and still failed in all subjects. He tried coordinating with the authorities but in vain. He had to finally give up engineering and move on to another field. He even tried taking some legal actions but it bore no results. 

RGPV is an old university with experienced and old staff. They don’t pay much heed to the complaints.

There are two things you can do at this point. Either fight them with all your might. Remember you will have to invest time, effort and a lot of energy in this. Or you can move on and do something better and more important in life. My acquaintance decided the latter as he thought he might waste his entire youth fighting with them. I will suggest you take up a different field and excel in it.