What do u mean to add me in this group

Indeed, sir, I believe the question is whether you wish to be included in a particular group. If I may say so, it would seem that someone has proposed your addition to a group, and they are now seeking your approval or consent. It might be a social circle, a committee, or even a club, depending on the nature of the invitation. If you will permit me, I should advise you to consider whether this group aligns with your interests or pursuits.