According to the reviews I read online, most of the students have supported Reva University over Sai Vidya Institute of Technology. There are many things that come into consideration like:

• The faculty is very important while considering a college. Reva University has a highly experienced faculty who are very helpful and cooperative as well. 
• By their proper guidance students at Reva have known to become very successful.
• The Course curriculum is as per industry interface as compared to any college which is regulated by the other long distance university like Sai Institute is regulated by the VTU.
• Life at Reva is said to be more exciting than any other college.

Therefore, it is suggested that you go for Reva University over Sai Vidya Institute of Technology, as it will offer you better opportunities in your career ahead.