Hi, 

Yes saveetha, Acs and balaji are the deemed universities. 

These are some of the good colleges and the cutoff  also tends to go very low

But at the same time the annual fee structure is also very high for these colleges. 

Saveetha medical college-22 lakhs/annum

ACS medical college-23lakhs/annum

Balaji-20lakhs/annum

Hope it helps

All the best