NEW DELHI: President Ram Nath Kovind on Friday expressed concern over the gathering of migrant workers in Anand Vihar and the congregation of Tablighi Jamaat in Nizamuddin, saying these two incidents caused a setback to the efforts to combat coronavirus , according to a statement issued by Rashtrapati Bhavan In a video-conference with the governors, lieutenant governors and administrators of states/Union territories, the president emphasized the need to ensure that no one remains hungry during the nationwide lockdown, enforced to check the spread of the virus."In the conference there was unanimity that there is no scope for laxity or complacency in fighting the invisible enemy. In this context, the president noted with concern the incidents of attacks on doctors, health workers and police personnel in some parts of the country," it said.Affirming that people of the country have set an example by showing exemplary courage, discipline and solidarity in the fight against Covid-19 pandemic, Kovind has expressed concern over two incidents, the gathering of migrant workers in Anand Vihar and the congregation of Tablighi Jamaat in Nizamuddin, both in Delhi, that caused a setback to the efforts, the statement said.Moreover, while ensuring that food and other essential items are made available to the needy, care has to be taken that no compromise is made on the question of social distancing, he added.