Protesters shout slogans against PM Narendra Modi. Pics/PTI

Prime Minister Narendra Modi who arrived in Chennai earlier yesterday to address the 10th edition of Defence Expo was greeted with black balloons and black flags. The Dravida Munnetra Kazhagam (DMK) floated a black balloon with the slogan 'Modi Go Back' as a sign of their protest against Modi Government for not constituting the Cauvery Management Board (CMB).