How do you feel and react when your own husband is so rude and shows attitude to your mother??

Speak to him when the both of you are alone. He probably has his reasons for doing it, regardless of whether it's agreeable to you. Let him know that you do not like it and he's not setting a good example for the younger generation. My husband and I live by this rule that we will each manage our own set of parents. Which means we will look nice and agreeable in front our in-laws and discuss the differences as a couple back home, and the responsible party will have to find an opportunity to feedback to their parent.