If you are planning on pursuin Computer Science then choosing PICT will be better than VIT. It offers better placement opportunities. According to the recent placement highlights the average and highest CTC offered by PICT is 7.75 LPA and 91 LPA respectively. 

Don’t choose VIT, just because it is autonomous. However, it does offer flexible academics and less number of lectures. If you get a backlog, you can clear it within one month.