New Delhi [India], January 21 (ANI): Flight operations may be affected at the Delhi airport due to the dense fog on Sunday, as per the Delhi airport. Sharing a passenger advisory on its official X handle, the Delhi airport said that passengers are requested to contact the airline concerned for updated flight operations. Any inconvenience caused is deeply regretted, it said. While an official said that 11 Delhi-bound trains from various parts of the country are running late due to dense fog conditions on Sunday. Meanwhile, the India Meteorological Department on Saturday predicted dense fog cond…