India, Jan. 16 -- In the early hours of Wednesday, Delhi-NCR transformed into a hill station of sorts as thick fog enveloped the city and its neighbouring areas, reducing visibility to almost zero. The temperature plummeted to a chilly 6degC, with the maximum barely climbing to 18degC. This came a day after the India Meteorological Department issued an 'orange' alert for the city, resulting in delays of 26 trains and over 100 flights....