On the Real Estate Law forum there is a sticky post that explains how to add someone to your deed. You can read it at https://www.askmehelpdesk.com/real-estate-law/how-add-someone-your-deed-91136.html

And I guess it would help ifyou tell us if you live in India, or France, or Japan or the US since the laws differ greatly and we are an international site.

Also why you need to do this, was it from a death of someone on the deed, a sell or what, that makes a difference also