Hi,

Saveetha School of engineering is affiliated to Saveetha Institute of Medical and Technical Sciences whereas Saveetha Engineering College is affiliated to Anna University. (which is a better brand)
Saveetha Engineering College and Saveetha School of Engineering both offers B. Tech / B.E, however, Saveetha Engineering College has better ranking than Saveetha School of engineering.  Also, when it comes to placements, Saveetha Engineering College has better placement records.

So, amongst them, Saveetha Engineering College will be  a better option.

Hope this was helpful.