@kash856
I f ur car is not heating up with Thermovalve/ Fan Direct & also not reducing water then there is no more Head gasket issue. As far as normal operating Temp is concern u need to get re installed Thermostat valve to maintain the recomended operating temp.
As per my experince wid some Santros the over heating problem satrts when its automatic fan operation gots disturbed even in presence of good working auotamtic fan Switch some time its fan dosnt operates automaticaly, becuase its fan starts when controller senses 4 diffrent pulses from diffrent points & some time Fan didnt opertaes automaticaly & car got heated & cuases head gasket damage. Mostly this type of problems were faced after high pressure water bath on Engine bay.
So get checked ur cars wiring from authrosed hyundai workshop & if u staill have doubt about automatic fan operation then keep it direct with ignition switch but must installed Thermostat valve to maintain recomended
engine operating temprature.