evidence: Sitharaman said over the next three years, 400 next-generation semi-high speed Vande Bharat Express trains will be developed and produced; these will have improved energy efficiency and passenger riding experience. Vande Bharat was originally known as Train 18. It was built by Integral Coach Factory (ICF) under the directions of the then general manager Sudhanshu Mani. [...] Unlike regular express trains, which have detachable locomotive at one end, the traction for a Vande Bharat series trainset is provided by electric gear (traction motor, rectifier, converters, transformer etc) suspended from alternate coaches and drawing energy from overhead equipment via pantographs mounted on coaches. [...] Apart from the technological aspects of Vande Bharat, which can hit 160 kmph in 140 seconds, superior comfort elements in this train separate it from a regular express train. These include superior seats, vacuum toilets, plug doors, gangways and other amenities. Indian Railways has begun to include these functions in the enhanced version of LHB coaches known as Tejas.