Flight operations at the IGI airport in New Delhi were normal on Monday due to a clear sky, a day after over 50 flights were disrupted due to operational reasons. <br/>According to Airport Officials, runway visibility was more than 2000 metres and all flight operations were normal. <br/>Flights operations were hit on Saturday after dense fog and a cable fault in the runway visual range measuring equipment led to closure of Delhi airport's two runways and a halt in operations for over eight hours. <br/>This resulted in a huge backlog of flights which spilled over to Sunday also. Over 50 international and domestic flights were delayed on Sunday.<br/>