Share FacebookTwitterWhatsAppPinterestLinkedinCopy URLTelegramEmailTumblrReddItPrintKoo NEW DELHI, Jan 10: Cold conditions intensified in parts of north India today, with many parts blanketed by thick fog that led to several vehicle collisions, leaving four dead and about 30 injured. The mercury in the Kashmir Valley, which has been experiencing sub-zero temperatures for some days now, dipped further and Delhi recorded the coldest morning of the ongoing winter season. It was biting cold in many parts of Punjab, with the temperature dipping to a bone-chilling 1.1 degrees Celsius in Hoshiarpur, the India Meteorological Department said.