My grandfather had 3 sons and when he was alive he made a registered will in which he mentioned their share and wrote that his sons will only have life interest in the property and the share they have been given but cant sell it ..After their death the grandsons will be the owners of their 1/3 share and if any one of the share holder wants to sell his share he will ask his other two co share holders & if they can buy he has to sell them if not he can sell it to a third person.A case in the district court in UP is still going on which was filed by one of the co shareholders restraining the other 2 share holders to sell it to anyone else .A status quo order keeps on extending on every date till now. In between 2/3 of the shareholders( grandsons) are also dead and I am the only grandson left .My cousion brother LRs have impleaded themselves in the case. In 2006 I gave a registered power of attorney to a third person giving him the rights to sell my share in parts or as a whole .I also gave him a notarized agreement to sale.Another suit was filed by my cousion brothers against that third man and stay order also taken against him.I cancelled the power of attorney in May 2019.
My question is ..Can that third party whom i gave the power of attorney sell my land to anyone else even though the case was pending in court and a status Quo imposed by the court ? will it hold any legal status ? can it be challenged ?