1. INTRODUCTION : - Almost a century old Registration Act , 1908, which came into force on 1-1-1909, after about fifteen amendments, has now thrown up sea - saw situation played by human ingenuity. These cases have thrown up a couple of interesting questions of law having far reaching consequences. Whether a person can nullify the sale by executing and registering a cancellation deed? Whether a registering officer, like District Registrar and / or Sub Registrar appointed by the State Government, is bound to refuse registration when a cancellation deed is presented? When cancellation deed is registered how the grievance, if any, is to be redressed in law? These and other incidental questions are required to be answered by this Full Bench.

2. BACKGROUND FACTS
At the outset, brief reference may be made to the pleadings, in these petitions. W. P. No. 23005 of 2004* is filed by the petitioner seeking a writ of Mandamus declaring the action of the third respondent (hereafter called, Sub Registrar) in registering the deed of cancellation, dated 20-8-2003, beaaring document No. 2854 of 2003 executed by respondents 4 and 5. It is the case of the petitioner that her husband purchased Flat No.