Over 300 flights were delayed at Delhi's Indira Gandhi International Airport on Tuesday due to low visibility conditions. The flight delay comes even as the national capital is shrouded under thick layer of fog since past week.

The India Meteorological Department (IMD) predicted cold conditions at isolated places and mainly clear skies in the city. The Met Office also said smog or moderate fog at most places with dense fog at isolated places likely in the morning,

The Delhi Airport on December 26 has issued an advisory informing passengers that low visibility procedures are in progress. However, it added that there has been no impact on flight operations. In its advisory, it advised passengers to contact the airline concerned for updated flight information.

The country's largest airline IndiGo had temporarily put arrivals and departures on hold at the airport early in the morning.

As per information available on flight tracking website Flightradar24.com, over 400 flights were delayed at the Delhi airport.

Post-holiday travel into and out of International Airport has been thrown into disarray by Winter Storm Blair.