Some private organizations can not give a day off to their workers because they claim, it will affect their productivity,

That's sad that some still think like this. I don't think having a day off is related to productivity anyways that's mostly an individual thing. I think it's up to the person whether they are willing to put the efforts or not and if they are not in a good state then they probably don't have the mood to put in that effort.

Enjoy your holidays O.O. You would love malaysia a lot of school holidays.