This discussion addresses a 1961 sale deed for a property purchased for Rs 88, which was written on plain paper and not registered. While registration might not have been mandatory for sales under Rs 100 at the time, it's now causing issues with local authorities for plan sanction. The advice suggests attempting to get a ratification deed from the vendor's legal heirs or, if they cannot be found, filing a suit for declaration in a civil court to establish legal title.