Firstly, clear your mind regarding the ranking of Vel Tech University. It is still a deemed university which means it is still under development. The university does not hold any Asian Rank or even the country-wise rank, but it holds a decent rank in Tamil Nadu. The university is considered better than many North Indian Universities.
Overall Vel Tech University has a good reputation among students and is considered good for academics and the rules that are being implemented here.
Lastly, we can conclude that do not look much into rank as nowadays paying more and attaining higher rank is not very difficult. Weigh the pros and cons of the university and then take your decision.