I have submited my parents marriage documents to be registered in conservatoria dos registos in centrais in lisboa,along with assento de nassemento copy, is this the right place I have sent? Please help.

Don't know if that is the correct place or not; what you are trying to accomplish with the documents ?

You have this under immigration law but it may not be the correct place to post. Please give us more information on what you want to do.