Duronto express is a newer premium class of train which runs as fast as Rajdhanis. Duronto word comes from restless in Bengali as these trains had no intermediate commercial stops when they started. But since Indian Railways incurred losses for these trains, some technical stops were converted to commercial stops. On some routes (such as Delhi-Kolkata) they take lesser time than corresponding Rajdhani express. Unlike rajdhani some durontos also have non-air conditioned sleeper class. Thus, Duronto trains have classes First AC (1A), AC II-tier, AC III-tier and Sleeper. Bed-rolls in sleeper class of Mixed Duronto Express trains will be supplied to passengers on demand, on payment of stipulated charges. Duronto trains are distinguished by vibrant and colorful vinyl coating on the outer surface of the coaches. 1 duronto train runs from Ratangarh Jn to Mughalsarai - SDAH DURONTO (12260).

Ratangarh Jn to Mughalsarai SDAH DURONTO (12260) departs from Ratangarh Jn station (RTGH) at 13:53 and arrives Deendayal Upadhyaya Jn station (DDU) at 04:35. This train has 6 stoppages. Ratangarh Jn to Mughalsarai duronto fare is Rs.3915 in First AC, Rs.2305 in Second AC and Rs.1635 in Third AC for this train which includes meal charges also.