Most of the districts of Rajasthan are in the grip of cold wave. On Tuesday, cold wave prevailed in Hanumangarh, Sikar, Churu, Mount Abu as well as in Jaipur and other districts. Visibility remained negligible in these districts due to dense fog till 11 in the morning. The Meteorological Department has issued an orange alert of extreme cold wave in Alwar, Bharatpur, Dhaulpur, Jhunjhunu, Karauli, Sikar, Churu, Hanumangarh and Sriganganagar. On the other hand, yellow alert of cold wave has been issued in 12 districts including Jaipur, Ajmer, Bikaner.