New Delhi, Jan 2 - Dense fog coupled with technical snag in the instrument landing system Saturday paralysed the flight operations at the Indira Gandhi International Airport here.

"All flight operations to and from Delhi have been affected following technical snag in the Runway Visual Range (RVR) instrument located on the main runway. Many international and domestic flights coming to Delhi have been diverted," said an airport official.

According to the Indian Meteorological Department, the visibility was less than 50 metres in the national capital. (IANS)