India has gradually ramped-up its testing capacity for Covid-19 and conducted over 4.20 lakh tests in a day, the highest ever, the Union Health Ministry said on 25 July. The government credited the increase in number of labs for the achievement. India had only one lab for testing samples for the disease in January but it has now increased the number to 1,301, including private labs. Till 24 July, a total of 1,58,49,068 tests for Covid-19 had been done in the country.