New Delhi, April 9 -- Three members of a family in Defence Colony, whose private security guard had attended the congregation at the Tablighi Jamaat Markaz in Nizamuddin in March, have been found Sars-Cov-2 positive. The police have registered an FIR against the guard for withholding the information from his employers, deputy commissioner of police (south) Atul Kumar Thakur said....