GKP DBRG SPL (05977) runs from Gorakhpur to Dibrugarh. It departs from Gorakhpur Jn station (GKP) at 21:30 and arrives at Dibrugarh station (DBRG) at 10:30. GKP DBRG SPL takes 48 hrs to cover the distance of 1725 km between Gorakhpur and Dibrugarh. It is a non-superfast train. The average speed of this train is 35.9375 kmph. It has classes Sleeper (SL). This train runs on Thursday. Final chart for GKP DBRG SPL is prepared at Gorakhpur usually 3-4 hours before train departure time.

Gorakhpur City has a shape of bowl, surrounded by the river and other small streams from three sides. Gorakhpur has its own cultural and historical importance. It belongs to the Great Lord Buddha, founder of Buddhism, who renounced his princely costumes at the confluence of rivers Rapti & Rohini and proceeded further in the quest of truth in 600 BC. It is also associated with Lord Mahavir, 24th tirthankar, founder of Jainism. Gorakhpur is also identified with the Gita Press, the world famous publisher of the Hindu religious books, which is fore-front in dissemination of religious and spiritual consciousness across the country. The most famous publication is 'KALYAN' magazine. The Gorakhpur Railway Station is located in the heart of the city of Gorakhpur in the Indian state of Uttar Pradesh. It serves as the headquarters of the North Eastern Railway. The station offers Class A railway station facilities. On October 6, 2013, Gorakhpur became the world's Longest Railway platform, after inauguration of the remodeled Gorakhpur Yard, with a stretch of around 1.35 km. An air force station in Gorakhpur was established in 1963 as Gorakhpur Airport, with a variety of planes and services, most notably Jaguar fighter planes and the second oldest helicopter unit of Indian Air Force. It is one of the biggest air force stations in Asia. Mahayogi Gorakhnath Airport or Gorakhpur Airport (GOP) operates as a civil enclave at the Gorakhpur Air Force Station of the Indian Air Force.

Dibrugarh is a picturesque town of Assam and is situated on the banks of river Brahmputra. It is a paradise with tea gardens and rainforests. It is biggest contributor of India's tea production and accounts for over 35% of total tea produced by the state. Literacy rate in Dibrugarh is close to 90% which is much higher than the national literacy rate. Dibrugarh is the biggest railway junction in the North eastern region. Dibrugarh Vivek Express that connects Dibrugarh to the southernmost tip of India - Kanyakumari holds world record for being the train that covers longest train route and maximum travel time to reach destination. It is a perfect example of cultural mix where one can find Assamese (Ahoms), Bengalis, Marwaris, Christian and Muslims. Dibrugarh Airport (DIB) is located at Mohanbari which is 15 Kms North East to the Dibrugarh city.