Congress President Sonia Gandhi has left for the United States for a "routine medical check-up" and will be back within a week, the party said here today.
"Congress President, Smt. Sonia Gandhi is travelling to U.S for a routine regular check up. She will return within a week," Congress spokesperson Randeep Surjewala said on micro-blogging site Twitter.
Ms. Gandhi had undergone a surgery in the US in August 2011, but the nature of the ailment for which she was treated was not disclosed by the party, which said at that time that it was a personal matter that pertained to her health and medical treatment..