raghunandan (lawofficer) 12 September 2015
R. Jayakumar (ADVOCATE) 12 September 2015
If the grantor (Principal) of the Power of Attorney died the Power of Attorney document automatically cancelled. So Sale Deed documents executed after death of the Principal also invalid so cancell the sale deeds and execute fresh sale deed documents for the Purchasers with the help of Legal heirs of the principal (or again get the Power of attorney from the legal heirs)
Kumar Doab (FIN) 12 September 2015
What is GPA Cum Sale?
Is it GPA with power to sell?
Has any of the legal heirs signed as witness?
In any case you were not notified.
You may certainly apparoach an able lawyer specializing in such/property/civil matters and also try to resolve with legal heirs.