How to deal with arrogant client?

Customer Satisfaction is the main motive to the clients so being polite and sensible in understanding the clients issue and giving a resolution to the concern is a good way to deal with him/her.

First, you need to choose your words carefully. Remember that the client is always right, even when he is wrong. Second, try to understand his problem and tell him you are going to do everything you can to help him. Make him feel like you are taking his case personally, it will make him trust you more when you'll talk to him. You can then treat him like you'd treat another client :)

By very polite manner, help him/her on the concerned problem with 100 % satisfaction.

By being polite, helpful and assertive with him/her.

I wont let them get into my nerves, I will just treat them nicely and politely..