Dense fog disrupted flight operations at the Indira Gandhi International Airport in New Delhi on Friday morning with 70 flights delayed and a dozen others cancelled.
Five international flights were diverted to nearby airports due to poor visibility. The visibility at the main runway was between 150-175 metres, while at the new runway it was between 75-100 metres.
General visibility was less than 50 metres and some of the flights landed using CAT-IIIB instrument landing system, an airport official said.
With visibility dipping below the prescribed limit of 125 metres and 150 metres for different types of aircrafts, flights were not able to take off and were delayed by upto 5 hours.
Two Jet Airways flights from Dubai and Doha and two Air India flights from Muscat and Abu Dhabiand a Royal Jordan flight from Amman were diverted to nearby airports.
Fourdomestic flights to Lucknow, Kochi, Bangalore and Chandigarh were cancelled. The airport has been witnessing fog for the last three days due to which flight schedule has been badly affected.
Forty six trains were running 6-10 hours behind schedule because of heavy fog reducing the visibility to merely 100meters in northern part of the country.
Moreover,departure of over two dozen trains have been deferred until further notice at the New Delhi railway station.
With inputs from Onkar Singh in New Delhi