Most parts of Punjab and Haryana on Monday saw a slight rise in the mercury despite dense fog and Faridkot town was the coldest in the region with a minimum temperature of 0.7 degree Celsius, a weather official said. "We have recorded a slight rise in the mercury in most parts of Punjab and Haryana. We have predicted a dip, especially during nights, in the coming days," the official said in Chandigarh.Most parts of Punjab and Haryana on Monday saw a slight rise in the mercury despite dense fog and Faridkot town was the coldest in the region with a minimum temperature of 0.7 degree Celsius, a weather official said. "We have recorded a slight rise in the mercury in most parts of Punjab and Haryana. We have predicted a dip, especially during nights, in the coming days," the official said in Chandigarh.