(1) The Corporation shall, within fifteen days of the calling of an election, ascertain and intimate to the Returning officer the names of electors, if any, subject to preventive detention together with their addresses and electoral roll numbers and the particulars about their places of detention.
(2) Any elector subjected to preventive detention may, within fifteen days of the calling of an election, send intimation to the Returning officer that he wishes to vote by post specifying his name, address, electoral roll number and place of detention.
(3) The Returning officer shall on receipt of such intimation issue a postal ballot paper to every elector subjected to preventive detention whose name has been intimated to him under sub-rule
(1) or under sub-rule (2).