Mumbai is recording 1,000 Covid positive cases per day. Hence, the BMC has ramped up random tests to prevent the spread of the virus. However, the analysed data reveals that 50% of the tests done were less reliable antigen tests. The centre recently directed the states to do 70 % RT-PCR tests which are more reliable. Experts say that the golden standard test would have been more accurate in detecting the infection. But, BMC Chief responded that they do not have the capacity to do more RT-PCR tests.