Kolkata, Sep 18 - Fulfilling a budget promise, Railway Minister Mamata Banerjee Friday flagged off the Duronto Express - a non-stop train that will cover the 1,454 km distance between Sealdah in West Bengal and New Delhi 90 minutes quicker than the Rajdhani.

While the Rajdhani Express completes the journey in 18 hours, Duronto takes only 16 hours and 30 minutes.

The train will adhere to the speed limit of 110 kmph, but reach faster as there are not commercial stoppages. The Sealdah-New Delhi Rajdhani Express has six commercial stoppages.

The Sealdah-New Delhi Duronto will have one AC I-tier coach, three AC II-tier coaches, four AC III-tier coaches and five economy AC III-tier coaches besides generator cars.

The Duronto rakes comprise ICF coaches used in the Rajdhanis and Garib Raths earlier.