http://timesofindia.indiatimes.com/D...ow/3923659.cms
That article discusses some of the reasons. No comment on how accurate or inaccurate it is .. I normally take anything the ToI prints with a pinch of salt.
To be sure the article above is rather more literate than the usual ToI article...
Originally Posted by
Yaatri
Your experience is not unusual. Fog can occur at DEL as late as early February. Why does fog disrupt DEL? Surely DEL is not the only airport that experiences fog! What's DEL/DGCA doing wrong that the airport experiences major delays on foggy days despite claims that DEL is now CAT III equipped? Are airlines with untrained pilots clogging the airport as they are unable to make room for incoming aircraft?