Correct Option: A

Duronto Express (“Rebel” or “rebellious” or “Restless” in a positive way) is a category of long distance trains run by the Indian Railways. The special feature of these trains is that they run non-stop from source to destination, barring technical halts. Mamata Banerjee announced the introduction of the non-stop Duronto Express trains in the Indian Rail budget 2009-10 as a first step towards high speed rail travel in India. The first Duronto ran between Sealdah and New Delhi.