Bhubaneswar, Dec. 21 -- The Airports Authority of India has issued an advisory on Sunday, warning of delays in flight schedules triggered by dense fog conditions in parts of Northern India.

The advisory instructs passengers to check flight updates with their respective airlines to allow extra time for travel to airports and completion of necessary formalities.

"Fog conditions in parts of Northern India are affecting visibility and may lead to delays or changes in flight operations at select airports. Passengers are advised to check flight updates with their airlines through official channels and allow extra time for airport travel and formalities," AAI's advisory read.

The AAI has also deployed passenger assistance teams for ground sup...