3 agreements for a flat to be released

Also to add my uncles are not interested in receiving any monetary benefits in lieu of this transfer.

"Release deed" is a document, where some person having some share "release" or "exstiguishes" his right in favour of somebody. If you say that it is released without any consideration than it would amount to gift. The revenue department will not leave any document without interpretation. Pay the stamp duty by calculating the portion of the property sought to be released. However, go before the Registrar of assurance and fill up the prescribed form and get the stamp duty ascertained.