New Delhi, Feb. 9 -- As many as 496 flights were cancelled and 8,038 flights were delayed due to dense fog in January, the civil aviation ministry said on Thursday.

In a written reply to Lok Sabha, Minister of State for Civil Aviation V K Singh said DGCA conducts meeting for preparedness of fog/low visibility operations for smooth flight operations with all stakeholders before commencement of the fog period and also issues instructions.

Besides, the Directorate General of Civil Aviation (DGCA) has issued regulations mandating operators to ensure that all flight crew members should be qualified for take-off, instrument approaches and operations to the lowest CAT-I/II/III minima as applicable, the minister said.

CAT-III pertains to operati...