While domestic flight operations have begun in India from May 25, scheduled international flights continue to remain suspended.
spokesperson said: "The simulator training centre has been duly informed to carry out the necessary sanitisation, disinfection and other laid down guidelines as stipulated by the authorities."
"Vistara is extending all possible support to the two infected pilots and continues to make every effort for the health and safety of its staff and customers that they serve," the spokesperson added.
India on Saturday went past Italy to become the sixth worst-hit nation by Covid-19, with the country registering a record single-day spike of 9,887 cases which pushed the nationwide tally to 2,36,657. The country's Covid-19 death toll stood at 6,642.