I think my updates came a bit late. Just saw a good news via FB from KTO about hotel tax refund wef 1 April 2014. Hence, greedy me sent a msg to KTO if they have a list of hotels that we can claim tax refund.
Their reply is :
"You can find the list here http://bit.ly/1kEuek And yes, it is only applicable to hotels, not guesthouses or motels."