Fellow CA
86871 Points
Joined June 2009
you will have to get the correction done at the registrar office. It is not for the Income-tax department to question what is written in the registered document. So if it says it is a sale, it is a sale for them.
one thing to note will be the stamp duty paid. See if there is any difference on gift to family vs sale. If your stamp duty % is that of the gift deed, it might be easier to convince the registrar office as well as the Income-tax department.