when rajdhani was introduced ADI was the capital of gujrat. now the capital is shifted and the train is not a secretariate to be shifted along the assembly. DBRT rajdhani is for KOHIMA (NAGALAND) and ITANAGAR (ARUNACHAL PRADESH) because there is no track to those two capitals the train goes up to the nearest point of ITANAGAR by the way touching DIMAPUR in NAGALAND.