When you correct for your direct manager an information, Is it considered rudeness or interference (nosy) or being helpful?

Every one has folses & mistakes

no body is full perfect100%

&

sure i have to correct my manager

but i must do it in a good & smart ways.

Correcting information for your manager is appropriate. Giving the right information may prevent errors in the future.  if your manager think you are being nosy or rude, you might have to re-think about how you have corrected him. Always leave a good impression on people, speak with them politely and let them know that you are being helpful and not dragging them down or making them feel upset about their errors. Good communication is the key to avoid misunderstandings with employees of higher positions. always talk to them with respect and make sure that te information you are giving them is correct and precise.

This depends on the style and method of correction, but the over all style and method of correction that determine how and style

Do not cross the rudeness we are in the other man, and human nature is located in the mis It is not correct that defect managers, but with respect and lovely style

of  course  you have to correct your manager

but in good way 

every one has mistakes

Actually mistakes are done by humans only whether its you are your boss or any body else about the guide 

yes you have to guide them very patiently and in a systematic way .