VELTECH and SASTRA university both are very well recognized universities. Among this two I would say its better to choose Sastra over VELTECH because Sastra has better infrastructural as well as academic facilities. The course are better designed in this college and the teachers are better in Sastra. So if you have to choose then chose Sastra University.

Now your career is the most important aspect of your life. So you should conduct a research about it and then only decide further.

To know more about both the college visit the links below:

https://www.careers360.com/university/vel-tech-rangarajan-dr-sagunthala-r-and-d-institute-of-science-and-technology-chennai

https://www.careers360.com/university/shanmugha-arts-science-technology-research-and-academy-thanjavur

I hope this answer helps. All the very best for your future endeavors!