New Delhi, May 5 -- The nearly month-long shutdown of runway 28/10 at Delhi's Indira Gandhi International Airport (IGIA) was marked by negligible progress on the technical upgrade that the closure was meant for, officials aware of the matter said, adding that the runway is now expected to be available for operations by May 8. While the Airports Authority of India (AAI), responsible for installing the instrument landing system (ILS), continued its work, officials said the airport operator in charge of the runway lighting system "could barely begin the work" and will resume it during the next shutdown in mid-June. The runway was closed on April 8 to upgrade its ILS to CAT III B standards, enabling aircraft operations during low visibility-a f...