A man was detained by security officals at Chennai airport on Sunday when he shouted 'Down down NPA,' minutes before Union Finance Minister Nirmala Sitharaman arrived here to address a pro-CAA event.
Police said the man had arrived at the airport to meet a relative and enquired why there was enhanced security.
On being told that the FM would be arriving here, he shouted 'down down NPA', following which he was detained, they said.