This train started late i.e. around 2:10 AM on 20 January i.e. around 6.5 hours delayed
from source station only, but I think fog last night was terrible and there
was zero visibility in Delhi at night, even the pride of the Indian railways "Rajdhani" expresses were delayed for more than 12 hours . The train should run on time if there is no fog. I hope that happens when I am traveling on 22 evening :-)