Nadia (West Bengal) [India], March 31 (ANI): Trinamool Congress leader Mahua Maitra launched a scathing attack on the Prime Minister-led Narendra Modi government in the centre over the concerns expressed by the United Nations on the arrest of Delhi Chief Minister and Aam Admi Party (AAP) convenor Arvind Kejriwal. While carrying out a voting campaign in Ward No 3 of Krishnanagar Municipality on Saturday, she said, “We sing the victory of our democracy all over the world. It is the first time that we are concerned about the activities of the current Modi government against opposition.” “The UN a…