Triveni Express (15075) is an express train (also known as the "Queen of Sonbhadra") in India that runs from Shaktinagar/Singrauli (Sonbhadra) to Tanakpur via Chopan, Mirzapur, Vindhyachal, Allahabad, Lucknow and Shahjahanpur. It is categorized under the Mail/Express category of Indian Railways. The name "Triveni" signifies the Triveni Sangam (the meeting pointing of three rivers) of the Ganges, the Yamuna and the (dead) Saraswati at Prayag (Allahabad), a station on the train's route.