India, Feb. 3 -- Dense fog blanketed large parts of Gurugram, including Maidwas, Golf Course Road, Dayma Road and the Delhi-Gurugram expressway, on Monday, reducing visibility on key arterial roads. The conditions came as the India Meteorological Department issued a warning of very dense fog and extended its yellow alert for dense fog and cold wave condition till Tuesday.

Amid the weather warning, the district agriculture department cautioned farmers about possible crop damage due to cold wave and frost conditions. Officials said extreme cold was leading to an increase in black rust, white rust, late blight and other fungal diseases, affecting crop germination, growth, flowering, grain filling, yield and storage capacity.

"Persistent lo...