I can't list which is top which is not. Because each hospital is special for different treatments. So I list 10 hospital names commonly not in top to bottom order.
PSG Hospitals
Kovai Medical Center & Hospital
G Kuppuswami Naidu Memorial Hospital
Sangeetha Super Speciality Hospital
Kovai Heart Foundation Pvt Ltd.
Ganga Medical Center And Hospitals
Gem Hospital India Pvt Ltd.
Vikram ENT Hospital
The Eye Foundation Coimbatore
Ortho One - Orthopaedic Specialty Center
If i missed any best hospital comment me.