Owing to the high demands of the passengers plying between Delhi and Kolkata and to ease down the existing pressure of bookings on the
Howrah Rajdhani Express,
Indian Railways decided to introduce another Rajdhani class train between these two cities. Since Howrah Division of Eastern Railways already had two existing Rajdhani Express trains, thus Sealdah Division of Eastern Railway was awarded with third Rajdhani Express to
West Bengal. Hence on the annual railway budget of FY 2000–01, the then
Minister of Railways,
Mamata Banerjee, announced the starting of the Sealdah – New Delhi Rajdhani on bi-weekly basis. Based on the same, on 1 July 2000, the first Sealdah Rajdhani Express left for New Delhi from Sealdah for its maiden journey. On 23 August 2006, the coaches of Sealdah Rajdhani Express were upgraded to LHB coaches to replace the older ICF coaches.
Profitability According to
Indian Railways, in the FY 2022–23, the 12314 New Delhi-Sealdah rake was the second highest revenue-generating train carrying 509,164 passengers in that period, the train generated the revenue of . == Route and halts ==