<br/>Dence fog engulfed Punjab, Haryana and Chandigarh on Friday. Rail, road and air traffic is being affected in the morning and during night also as vehicular traffic moves smooth during day when sun appears. Friday is the 17th foggy day in this month. Minimum and Maximum temperature are hovering between 1 and 5 degree celsius benow normal in the region. Amritsar is the coldest place with low minimum temperature of minus 1 degree celsius.<br/>