Members of India's Congress party walk past a memorial to former Indian prime minister Rajiv Gandhi on his 18th death anniversary in Sriperumbudur, on the outskirts of the southern Indian city of Chennai, May 21, 2009. Rajiv Gandhi, husband of Congress chief Sonia Gandhi, was killed by a female suicide bomber during an election campaign on May 21, 1991. Reuters Pictures 6 months ago

Members of India's Congress party walk past a memorial to former Indian prime minister Rajiv Gandhi on his 18th death anniversary in Sriperumbudur, on the outskirts of the southern Indian city of Chennai, May 21, 2009. Rajiv Gandhi, husband of Congress chief Sonia Gandhi, was killed by a female suicide bomber during an election campaign on May 21, 1991.