NEW DELHI : Delhi airport has set up a COVID-19 testing facility at the multi-level car parking area of its Terminal 3 for arriving international passengers who have to take connecting domestic flights, its operator DIAL said on Friday.It will be operational within a few days.The testing facility has been established by the Delhi Airport International Limited (DIAL) in collaboration with Genestrings Diagnostic Centre, which is currently associated with the Delhi government to test COVID-19 samples.The Civil Aviation Ministry had on Wednesday said that international passengers who have to take connecting domestic flights after landing in India will have the option of getting themselves tested for COVID-19 at the entry airports.