Thick fog grips the capital affecting the railway and air traffic as 55 trains, 12 international and at least 17 domestic flights have been delayed.<br />Scores of passengers were seen stranded hopelessly waiting for their respective flights and trains.<br />Visibility across Delhi NCR was at a low of less than 20 metres causing the forced cancellation of six trains and two domestic flights.<br /><br />Video: ANI<br />Music: Big Bang Fuzz
