Consider if I book a ticket for a single person on a weekday in last week of May in 12267 Duronto, the fare of 3e is showing as ₹ 1610
but in return journey of 12268, if booked on the Saturday of the same week, the fare for 3e is shown as ₹1730. The Dynamic fare is applicable in all the Durontos but why such variation of 120 in fare is seen in onward and return journeys?