Republic Day parade, members of the tableaux contingents from various states, ministries and government departments underwent COVID-19 tests at a cultural camp in Delhi Cantonment on Friday, officials said.On the sidelines of a media preview held at the camp, members belonging to different tableaux queued up in a corner where medical staff housed under two canopies collected samples from them for RT-PCR tests.An official from the diagnostic testing team said several members of different contingents had brought RT-PCR tests reports with them when they had arrived in Delhi and later joined the camp in the cantonment area, while others were tested for the coronavirus infection after their arrival here.Members of contingents in their colourful.