New Delhi, Oct 21: Congress president and leader of the Opposition in Lok Sabha Sonia Gandhi today met visiting Sri Lankan Prime Minister Ranil Wickremesinghe and understood to have exchanged views on regional and international matters concerning both the two countries. Chairman of AICC's Foreign Affairs Department and former External Affairs Minister Natwar Singh and secretary of the Department Aniel Matharani were also present during the 30-minute meeting Gandhi had with Wickremesinghe, party sources said. Bureau Report