Yes, it has been banned. This is the worst University among all the deemed Universities in Tamil Nadu. It is a horrible University, who doctorate degrees are not even the paper on which they get printed on. As regards your BCA, it is fine as Partha Sir has clearly explained.
However, going ahead, it is very doubtful if you will be able to get any Government job, as this University is not considered a great University to even get a regular degree. Kindly ensure that you disconnect from this University and do your MCA from a regular University like IGNOU or even part time from the nearest University, in your area.
There are so many other Universities like this University. Please do have a reality check before you take up any course. You cannot do anything with just your BCA degree, even if you get a Government job. Since I do not know where you live, I do not know eligibility criteria that exists in many parts of India. Please do note that this University may loose its recognition totally and may be converted into just a group of colleges that may soon be affiliated to another State Government, UGC recognized University called Periyar University, at Salem. However, this is another non-so-good also-ran University that is slowly loosing all its value.
Any distance education, including IGNOU is never treated on par, by the private sector. So, just in case you land in the private sector, you will do well to acquire higher qualifications to stay ahead. If you get a Government job with this BCA qualification, fine. All the very best. Go ahead. But qualify further, you must.