Ext.P3 agreement of sale dated 11.09.1984 was executed between the 4 th respondent Housing Board and the petitioner's husband. The said plot was handed over to the petitioner's husband on 28.07.1989 as evidenced by Ext.P4. The petitioner's husband constructed a residential building in that plot with the approval of the Corporation of Cochin. The petitioner's husband was missing after the construction of the building. After declaration of his civil death by the competent court, the 4 th respondent Housing Board executed Ext.P5 sale deed in respect of the aforesaid plot, in favour of the petitioner and her two children, on 07.03.2018. The petitioner obtained Ext.P6 ROR dated 02.02.2019 from the 3 rd respondent Village Officer, in which the description of the land is shown as 'Nilam'. In Ext.P7 tax receipt as well the description of the land is shown as 'Nilam'. However, in Ext.P8 relevant extract of the data bank, the property covered by the Ext.P5 is described as 'converted land before 2008'. The petitioner's property in survey Nos.484 and 485 are serial Nos.611 and 612 in Ext.P8, in which it is classified as 'purayidom'. The document marked as Ext.P9 is a memo issued by the Kochi Municipal Corporation regarding change of assessment of building tax, in the name of the petitioner and her children, in respect of house No.64/265 (37/1407) constructed
