I am one who abhors any kind of physical violence on anyone,. Wife being our life partner, well wisher and even looks upon their husband for security of body and mind violence on one's wife is more despicable and to be avoided.
Even Kautilya has given physical punishment as the last one in th order of the four Upayas or approaches .
This kind of physical attack or inflicting physical pain is not meant to be in the current civilized and gender equality world.
However the s portion " 52% of Malayalee women say that there is nothing wrong with a husband beating up a woman who does not look after her children, does not do housework, and treats her husband's family with disrespect." indicates the special mental attitude and approach of those people. This is our general attitude when w feel that we have committed a mistake and only a punishment can deter us from committing it further. It is a mental attitude of owning up our own mistake and to remove the guilty feeling. Thus it is felt that a punishmnt of inflicting some pain by beating, tweaking of ears, etc by a teacher are taken as deserving correctional methods by the teacher who has the right to do that. By taking up the punishment the student feels that there is a levelling up or compensation or contra action to the mistake . This now aware that she had committed a mistake and a beating by the disband is a correctional reminder which absolves her of the otherwise feeling of guilty complex.
However I am of the view that as far as possible the first three of the four Upayas should only be used. Imagine the consequences and development of the situation, if there is a similar retaliation by the other side.