Prasad,
Kind of a vague question; and it does not appear to be relevant to the original topic of this post.
In general, there are transactions whose purpose is to change master data.
I will not be responding to additional questions that are not germane to the original question. I suggest that if you wish to explore additional topics, you raise new posts for each new question.
I will warn you, however, that asking basic questions, without first searching for the answers yourself, will likely be rejected by moderators. Read the Rules of Engagement.
Best Regards,
DB49