12402 : we are talking about continuous ( Year to year) delay , last seven year it has reached Islampur Right time only two occasions ( Average delay 2.7 Hrs) 12401 average delay 4.7 Hrs and never reached exactly right time in last seven years. 12873 Jharkhand always right time Chopan & Delhi reached 5 hrs late. 12874 Jharkhand start running 2 to 3 hours late and reached Ranchi 5 hrs to 7 hrs on continuous basis