LUCKNOW, Sept. 3 -- The Lucknow bench of the Allahabad high court has dismissed as withdrawn a writ petition challenging Congress leader Rahul Gandhi's Indian citizenship, observing that the petitioners failed to produce any concrete document to substantiate their allegation that he was a British citizen. A division bench of Justices Shekhar B Saraf and Abdhesh Kumar Chaudhary passed the order on Aug 31. P5...