The Delhi High Court has asked the Aam Aadmi Party government why it was going with Rapid Antigen Testing (RAT) which has a high rate of false negative results, as the primary test of COVID-19 infection. NDTV takes a look at the testing numbers and finds over the last few weeks while the level of testing increased, it was mainly through RAT while RT-PCR testing, which is the gold standard, went down. Is this the reason Delhi has seen COVID-19 cases go down?