Last time I heard, constitutional pundits were still searching for such invisible reciprocity provision in Sec 5 of Citizenship,1955 ( along with all subsequent amendments) http://mha.nic.in/pdfs/ic_
But we were never talking about status of Sonia's Citizenship by Registration or Naturalization but eligibility of a such a citizen to occupy the post of PM.Even if someone finds such reciprocity clause between the lines in the law, Swamy's storyline will stick only if one can prove that Italy too has such a provision.
All this is immaterial. Press Records of Rashtrapati Bhavan prove that the then president APJ Abdul Kalam never raised the issue of Citizenship with Sonia.
"CITIZENSHIP ISSUE NOT DISCUSSED WITH SMT. SONIA GANDHI
19-05-2004 : Rashtrapati Bhavan, New Delhi
It has been reported in a section of the press that the President Dr. A.P.J. Abdul Kalam had discussed the citizenship issue with Smt. Sonia Gandhi when she met him yesterday at Rashtrapati Bhavan. This is contrary to facts. It did not figure in the discussions at all."
Press releases dating back to 2004 are unavailable on presidentofIndia's website. They were removed after 2007 Presidential elections.But one can always get a hard copy from President's Secretariat).Press information Bureau's link : http://pib.nic.in/newsite/
After demitting office, APJ Abdul Kalam himself made it clear in an interview.P M Nair, then secretary to the President in his book “The Kalam Effect: My years with the President” further confirms it
One wonders, how Swamy went around telling the same cock and bull story.