International airports around the country are lining up chairs and preparing to test hundreds of passengers at a time starting midnight. No passenger can leave until their RT-PCR test result is out, which can take up to 4-6 hours. A version of Covishield, tailormade for the new Covid variant Omicron can be considered if research indicates a need, Serum Institute of India chief Adar Poonawalla told NDTV today. India's gross domesic product (GDP) grew by 8.4 per cent during the July-September quarter of 2021-22.