Vaishali Express

The 15565 / 15566 Vaishali Express is an express train operated by Indian Railways, running between in Delhi and in Bihar, India. It is operated by East [Central Railway zone] and is known for serving the northern part of Bihar and connecting it to the national capital.

History

The train originally operated between New Delhi and Samastipur Junction, serving as an important route in northern Bihar.
The train was previously known as the Jayanti Jayanta Express, also called the Muzaffarpur–New Delhi Jayanti Jayanta Express in some earlier timetables.
It was later extended to Barauni Junction, expanding its reach within the region.
On 5 March 2019, the service was extended again to Saharsa Junction, increasing connectivity further into northeastern Bihar.
In May 2018, the train's older ICF coaches were replaced with modern LHB coaches, improving passenger safety and ride quality.
The Vaishali Express became one of the first Indian trains to receive ISO 9000 certification, following the Bhopal Express.
On 1 October 2025, the train was extended up to Lalitgram Railway Station, passing through Supaul, Sariaghat, and Raghopur, providing better rail access to these areas.
On 7 December 2025, it is announced that Vaishali Express will change the train number from 12553/12554 to 15565/15566, thus making the train downgrade from Superfast to original Express category.