Jalandhar is a city in the north-western Indian state of Punjab. Jalandhar is the oldest city in Punjab. In recent years it has seen rapid urbanisation and developed into a highly industrialised centre of commercial activity. Situated on the Grand Trunk Road, it is a major rail and road junction, and is 144 km northwest of the state capital, Chandigarh. The city was known as Prasthala in the time of the Mahabharata and as Jullundur in British India.
Jalandhar and Multan are the oldest surviving cities of the Punjab region, with historical references as far back as A.D. 100. The Jalandhar Doab (the region surrounding the city between the Beas and Sutlej rivers) also marked the easternmost territory of the empire of Alexander the Great. He erected giant altars in this area to mark the eastern most extent of his empire and also founded a city named Alexandria in the vicinity and left many Macedonian veterans there. Now it is known as Jalandhar.